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Finding the Fourth Proportional to 541,562.90, 747,257.20 and 312,088.01

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Solution

The fourth proportional to 541,562.90, 747,257.20 and 312,088.01 is: 430,624.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,562.90 : 747,257.20 = 312,088.01 : x
  2. Step 2: Convert to fraction form
    541,562.90/747,257.20 = 312,088.01/x
  3. Step 3: Cross multiply
    541,562.90x = 747,257.20 × 312,088.01
  4. Step 4: Simplify right side
    541,562.90x = 233,210,007,989.67
  5. Step 5: Solve for x
    x = 233,210,007,989.67/541,562.90
  6. Step 6: Final answer
    x = 430,624.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.