Home / 719,566,199.83-993,001,688.01-389,541,338.83

Finding the Fourth Proportional to 719,566,199.83, 993,001,688.01 and 389,541,338.83

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Solution

The fourth proportional to 719,566,199.83, 993,001,688.01 and 389,541,338.83 is: 537,567,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,566,199.83 : 993,001,688.01 = 389,541,338.83 : x
  2. Step 2: Convert to fraction form
    719,566,199.83/993,001,688.01 = 389,541,338.83/x
  3. Step 3: Cross multiply
    719,566,199.83x = 993,001,688.01 × 389,541,338.83
  4. Step 4: Simplify right side
    719,566,199.83x = 386,815,207,005,917,632
  5. Step 5: Solve for x
    x = 386,815,207,005,917,632/719,566,199.83
  6. Step 6: Final answer
    x = 537,567,227.45

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Double scale
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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.