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Finding the Fourth Proportional to 651,630.70, 977,446.05 and 385,254.10

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Solution

The fourth proportional to 651,630.70, 977,446.05 and 385,254.10 is: 577,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,630.70 : 977,446.05 = 385,254.10 : x
  2. Step 2: Convert to fraction form
    651,630.70/977,446.05 = 385,254.10/x
  3. Step 3: Cross multiply
    651,630.70x = 977,446.05 × 385,254.10
  4. Step 4: Simplify right side
    651,630.70x = 376,565,098,291.31
  5. Step 5: Solve for x
    x = 376,565,098,291.31/651,630.70
  6. Step 6: Final answer
    x = 577,881.15

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Double scale
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1.5x scale

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.