Home / 719,233,285.86-991,995,017.25-618,930,782.70

Finding the Fourth Proportional to 719,233,285.86, 991,995,017.25 and 618,930,782.70

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Solution

The fourth proportional to 719,233,285.86, 991,995,017.25 and 618,930,782.70 is: 853,653,834.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,233,285.86 : 991,995,017.25 = 618,930,782.70 : x
  2. Step 2: Convert to fraction form
    719,233,285.86/991,995,017.25 = 618,930,782.70/x
  3. Step 3: Cross multiply
    719,233,285.86x = 991,995,017.25 × 618,930,782.70
  4. Step 4: Simplify right side
    719,233,285.86x = 613,976,252,461,042,560
  5. Step 5: Solve for x
    x = 613,976,252,461,042,560/719,233,285.86
  6. Step 6: Final answer
    x = 853,653,834.62

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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.