Home / 877,570.30-1,316,355.45-344,914.30

Finding the Fourth Proportional to 877,570.30, 1,316,355.45 and 344,914.30

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Solution

The fourth proportional to 877,570.30, 1,316,355.45 and 344,914.30 is: 517,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,570.30 : 1,316,355.45 = 344,914.30 : x
  2. Step 2: Convert to fraction form
    877,570.30/1,316,355.45 = 344,914.30/x
  3. Step 3: Cross multiply
    877,570.30x = 1,316,355.45 × 344,914.30
  4. Step 4: Simplify right side
    877,570.30x = 454,029,818,587.94
  5. Step 5: Solve for x
    x = 454,029,818,587.94/877,570.30
  6. Step 6: Final answer
    x = 517,371.45

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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.