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Finding the Fourth Proportional to 573,572.40, 791,538.96 and 315,460.56

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Solution

The fourth proportional to 573,572.40, 791,538.96 and 315,460.56 is: 435,340.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,572.40 : 791,538.96 = 315,460.56 : x
  2. Step 2: Convert to fraction form
    573,572.40/791,538.96 = 315,460.56/x
  3. Step 3: Cross multiply
    573,572.40x = 791,538.96 × 315,460.56
  4. Step 4: Simplify right side
    573,572.40x = 249,699,323,583.42
  5. Step 5: Solve for x
    x = 249,699,323,583.42/573,572.40
  6. Step 6: Final answer
    x = 435,340.55

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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.