Home / 939,697,968.30-1,409,546,952.45-395,502,384.30

Finding the Fourth Proportional to 939,697,968.30, 1,409,546,952.45 and 395,502,384.30

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Solution

The fourth proportional to 939,697,968.30, 1,409,546,952.45 and 395,502,384.30 is: 593,253,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,697,968.30 : 1,409,546,952.45 = 395,502,384.30 : x
  2. Step 2: Convert to fraction form
    939,697,968.30/1,409,546,952.45 = 395,502,384.30/x
  3. Step 3: Cross multiply
    939,697,968.30x = 1,409,546,952.45 × 395,502,384.30
  4. Step 4: Simplify right side
    939,697,968.30x = 557,479,180,476,773,760
  5. Step 5: Solve for x
    x = 557,479,180,476,773,760/939,697,968.30
  6. Step 6: Final answer
    x = 593,253,576.45

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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.