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Finding the Fourth Proportional to 293,025.60, 439,538.40 and 260,366.40

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Solution

The fourth proportional to 293,025.60, 439,538.40 and 260,366.40 is: 390,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,025.60 : 439,538.40 = 260,366.40 : x
  2. Step 2: Convert to fraction form
    293,025.60/439,538.40 = 260,366.40/x
  3. Step 3: Cross multiply
    293,025.60x = 439,538.40 × 260,366.40
  4. Step 4: Simplify right side
    293,025.60x = 114,441,030,869.76
  5. Step 5: Solve for x
    x = 114,441,030,869.76/293,025.60
  6. Step 6: Final answer
    x = 390,549.60

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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.