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Finding the Fourth Proportional to 710,062.70, 1,065,750.15 and 355,331.30

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Solution

The fourth proportional to 710,062.70, 1,065,750.15 and 355,331.30 is: 533,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,062.70 : 1,065,750.15 = 355,331.30 : x
  2. Step 2: Convert to fraction form
    710,062.70/1,065,750.15 = 355,331.30/x
  3. Step 3: Cross multiply
    710,062.70x = 1,065,750.15 × 355,331.30
  4. Step 4: Simplify right side
    710,062.70x = 378,694,386,274.70
  5. Step 5: Solve for x
    x = 378,694,386,274.70/710,062.70
  6. Step 6: Final answer
    x = 533,325.28

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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.