Home / 915,830,545.13-1,263,503,775.85-539,256,988.38

Finding the Fourth Proportional to 915,830,545.13, 1,263,503,775.85 and 539,256,988.38

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Solution

The fourth proportional to 915,830,545.13, 1,263,503,775.85 and 539,256,988.38 is: 743,973,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,830,545.13 : 1,263,503,775.85 = 539,256,988.38 : x
  2. Step 2: Convert to fraction form
    915,830,545.13/1,263,503,775.85 = 539,256,988.38/x
  3. Step 3: Cross multiply
    915,830,545.13x = 1,263,503,775.85 × 539,256,988.38
  4. Step 4: Simplify right side
    915,830,545.13x = 681,353,240,962,615,808
  5. Step 5: Solve for x
    x = 681,353,240,962,615,808/915,830,545.13
  6. Step 6: Final answer
    x = 743,973,046.75

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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.