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Finding the Fourth Proportional to 572,499,336, 790,082,831.07 and 431,121,124.80

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Solution

The fourth proportional to 572,499,336, 790,082,831.07 and 431,121,124.80 is: 594,972,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,499,336 : 790,082,831.07 = 431,121,124.80 : x
  2. Step 2: Convert to fraction form
    572,499,336/790,082,831.07 = 431,121,124.80/x
  3. Step 3: Cross multiply
    572,499,336x = 790,082,831.07 × 431,121,124.80
  4. Step 4: Simplify right side
    572,499,336x = 340,621,398,816,066,816
  5. Step 5: Solve for x
    x = 340,621,398,816,066,816/572,499,336
  6. Step 6: Final answer
    x = 594,972,565.73

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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.