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Finding the Fourth Proportional to 712,793.16, 983,654.22 and 426,313.24

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Solution

The fourth proportional to 712,793.16, 983,654.22 and 426,313.24 is: 588,312.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,793.16 : 983,654.22 = 426,313.24 : x
  2. Step 2: Convert to fraction form
    712,793.16/983,654.22 = 426,313.24/x
  3. Step 3: Cross multiply
    712,793.16x = 983,654.22 × 426,313.24
  4. Step 4: Simplify right side
    712,793.16x = 419,344,817,567.87
  5. Step 5: Solve for x
    x = 419,344,817,567.87/712,793.16
  6. Step 6: Final answer
    x = 588,312.07

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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.