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Finding the Fourth Proportional to 695,369,024.64, 959,662,627.56 and 398,104,503.48

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Solution

The fourth proportional to 695,369,024.64, 959,662,627.56 and 398,104,503.48 is: 549,414,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,369,024.64 : 959,662,627.56 = 398,104,503.48 : x
  2. Step 2: Convert to fraction form
    695,369,024.64/959,662,627.56 = 398,104,503.48/x
  3. Step 3: Cross multiply
    695,369,024.64x = 959,662,627.56 × 398,104,503.48
  4. Step 4: Simplify right side
    695,369,024.64x = 382,046,013,853,085,952
  5. Step 5: Solve for x
    x = 382,046,013,853,085,952/695,369,024.64
  6. Step 6: Final answer
    x = 549,414,771.60

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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.