Home / 639,738,049.30-959,607,073.95-536,425,918.90

Finding the Fourth Proportional to 639,738,049.30, 959,607,073.95 and 536,425,918.90

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Solution

The fourth proportional to 639,738,049.30, 959,607,073.95 and 536,425,918.90 is: 804,638,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,738,049.30 : 959,607,073.95 = 536,425,918.90 : x
  2. Step 2: Convert to fraction form
    639,738,049.30/959,607,073.95 = 536,425,918.90/x
  3. Step 3: Cross multiply
    639,738,049.30x = 959,607,073.95 × 536,425,918.90
  4. Step 4: Simplify right side
    639,738,049.30x = 514,758,106,426,569,024
  5. Step 5: Solve for x
    x = 514,758,106,426,569,024/639,738,049.30
  6. Step 6: Final answer
    x = 804,638,878.35

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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.