Home / 721,097,437.94-995,114,464.17-391,072,576.94

Finding the Fourth Proportional to 721,097,437.94, 995,114,464.17 and 391,072,576.94

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Solution

The fourth proportional to 721,097,437.94, 995,114,464.17 and 391,072,576.94 is: 539,680,156.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,097,437.94 : 995,114,464.17 = 391,072,576.94 : x
  2. Step 2: Convert to fraction form
    721,097,437.94/995,114,464.17 = 391,072,576.94/x
  3. Step 3: Cross multiply
    721,097,437.94x = 995,114,464.17 × 391,072,576.94
  4. Step 4: Simplify right side
    721,097,437.94x = 389,161,977,854,250,432
  5. Step 5: Solve for x
    x = 389,161,977,854,250,432/721,097,437.94
  6. Step 6: Final answer
    x = 539,680,156.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.