Home / 719,409,514.43-992,842,809.78-571,947,590.81

Finding the Fourth Proportional to 719,409,514.43, 992,842,809.78 and 571,947,590.81

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Solution

The fourth proportional to 719,409,514.43, 992,842,809.78 and 571,947,590.81 is: 789,333,532.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,409,514.43 : 992,842,809.78 = 571,947,590.81 : x
  2. Step 2: Convert to fraction form
    719,409,514.43/992,842,809.78 = 571,947,590.81/x
  3. Step 3: Cross multiply
    719,409,514.43x = 992,842,809.78 × 571,947,590.81
  4. Step 4: Simplify right side
    719,409,514.43x = 567,854,053,101,737,792
  5. Step 5: Solve for x
    x = 567,854,053,101,737,792/719,409,514.43
  6. Step 6: Final answer
    x = 789,333,532.18

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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.