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Finding the Fourth Proportional to 620,065,575.60, 930,098,363.40 and 275,691,807.60

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Solution

The fourth proportional to 620,065,575.60, 930,098,363.40 and 275,691,807.60 is: 413,537,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,065,575.60 : 930,098,363.40 = 275,691,807.60 : x
  2. Step 2: Convert to fraction form
    620,065,575.60/930,098,363.40 = 275,691,807.60/x
  3. Step 3: Cross multiply
    620,065,575.60x = 930,098,363.40 × 275,691,807.60
  4. Step 4: Simplify right side
    620,065,575.60x = 256,420,499,051,547,712
  5. Step 5: Solve for x
    x = 256,420,499,051,547,712/620,065,575.60
  6. Step 6: Final answer
    x = 413,537,711.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.