Home / 905,376,642.30-1,358,064,963.45-819,283,200.30

Finding the Fourth Proportional to 905,376,642.30, 1,358,064,963.45 and 819,283,200.30

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Solution

The fourth proportional to 905,376,642.30, 1,358,064,963.45 and 819,283,200.30 is: 1,228,924,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,376,642.30 : 1,358,064,963.45 = 819,283,200.30 : x
  2. Step 2: Convert to fraction form
    905,376,642.30/1,358,064,963.45 = 819,283,200.30/x
  3. Step 3: Cross multiply
    905,376,642.30x = 1,358,064,963.45 × 819,283,200.30
  4. Step 4: Simplify right side
    905,376,642.30x = 1,112,639,809,470,618,496
  5. Step 5: Solve for x
    x = 1,112,639,809,470,618,496/905,376,642.30
  6. Step 6: Final answer
    x = 1,228,924,800.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.