Home / 742,566,430.96-1,024,681,684.32-429,320,831.68

Finding the Fourth Proportional to 742,566,430.96, 1,024,681,684.32 and 429,320,831.68

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Solution

The fourth proportional to 742,566,430.96, 1,024,681,684.32 and 429,320,831.68 is: 592,428,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,566,430.96 : 1,024,681,684.32 = 429,320,831.68 : x
  2. Step 2: Convert to fraction form
    742,566,430.96/1,024,681,684.32 = 429,320,831.68/x
  3. Step 3: Cross multiply
    742,566,430.96x = 1,024,681,684.32 × 429,320,831.68
  4. Step 4: Simplify right side
    742,566,430.96x = 439,917,192,919,525,632
  5. Step 5: Solve for x
    x = 439,917,192,919,525,632/742,566,430.96
  6. Step 6: Final answer
    x = 592,428,063.78

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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.