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Finding the Fourth Proportional to 437,232.60, 655,848.90 and 260,285.40

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Solution

The fourth proportional to 437,232.60, 655,848.90 and 260,285.40 is: 390,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,232.60 : 655,848.90 = 260,285.40 : x
  2. Step 2: Convert to fraction form
    437,232.60/655,848.90 = 260,285.40/x
  3. Step 3: Cross multiply
    437,232.60x = 655,848.90 × 260,285.40
  4. Step 4: Simplify right side
    437,232.60x = 170,707,893,276.06
  5. Step 5: Solve for x
    x = 170,707,893,276.06/437,232.60
  6. Step 6: Final answer
    x = 390,428.10

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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.