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Finding the Fourth Proportional to 614,273.40, 921,410.10 and 348,552.90

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Solution

The fourth proportional to 614,273.40, 921,410.10 and 348,552.90 is: 522,829.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,273.40 : 921,410.10 = 348,552.90 : x
  2. Step 2: Convert to fraction form
    614,273.40/921,410.10 = 348,552.90/x
  3. Step 3: Cross multiply
    614,273.40x = 921,410.10 × 348,552.90
  4. Step 4: Simplify right side
    614,273.40x = 321,160,162,444.29
  5. Step 5: Solve for x
    x = 321,160,162,444.29/614,273.40
  6. Step 6: Final answer
    x = 522,829.35

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Similar ratio
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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.