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Finding the Fourth Proportional to 573,549.31, 791,507.19 and 315,437.55

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Solution

The fourth proportional to 573,549.31, 791,507.19 and 315,437.55 is: 435,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,549.31 : 791,507.19 = 315,437.55 : x
  2. Step 2: Convert to fraction form
    573,549.31/791,507.19 = 315,437.55/x
  3. Step 3: Cross multiply
    573,549.31x = 791,507.19 × 315,437.55
  4. Step 4: Simplify right side
    573,549.31x = 249,671,088,820.98
  5. Step 5: Solve for x
    x = 249,671,088,820.98/573,549.31
  6. Step 6: Final answer
    x = 435,308.85

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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.