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Finding the Fourth Proportional to 710,847,300.96, 980,962,021.08 and 397,580,767.92

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Solution

The fourth proportional to 710,847,300.96, 980,962,021.08 and 397,580,767.92 is: 548,657,402.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,847,300.96 : 980,962,021.08 = 397,580,767.92 : x
  2. Step 2: Convert to fraction form
    710,847,300.96/980,962,021.08 = 397,580,767.92/x
  3. Step 3: Cross multiply
    710,847,300.96x = 980,962,021.08 × 397,580,767.92
  4. Step 4: Simplify right side
    710,847,300.96x = 390,011,633,641,341,632
  5. Step 5: Solve for x
    x = 390,011,633,641,341,632/710,847,300.96
  6. Step 6: Final answer
    x = 548,657,402.39

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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.