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Finding the Fourth Proportional to 575,135.40, 862,703.10 and 473,658.60

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Solution

The fourth proportional to 575,135.40, 862,703.10 and 473,658.60 is: 710,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,135.40 : 862,703.10 = 473,658.60 : x
  2. Step 2: Convert to fraction form
    575,135.40/862,703.10 = 473,658.60/x
  3. Step 3: Cross multiply
    575,135.40x = 862,703.10 × 473,658.60
  4. Step 4: Simplify right side
    575,135.40x = 408,626,742,561.66
  5. Step 5: Solve for x
    x = 408,626,742,561.66/575,135.40
  6. Step 6: Final answer
    x = 710,487.90

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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.