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Finding the Fourth Proportional to 501,488.40, 747,020.42 and 474,325.32

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Solution

The fourth proportional to 501,488.40, 747,020.42 and 474,325.32 is: 706,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,488.40 : 747,020.42 = 474,325.32 : x
  2. Step 2: Convert to fraction form
    501,488.40/747,020.42 = 474,325.32/x
  3. Step 3: Cross multiply
    501,488.40x = 747,020.42 × 474,325.32
  4. Step 4: Simplify right side
    501,488.40x = 354,330,699,763.03
  5. Step 5: Solve for x
    x = 354,330,699,763.03/501,488.40
  6. Step 6: Final answer
    x = 706,558.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.