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Finding the Fourth Proportional to 502,655.60, 702,143.20 and 502,655.60

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Solution

The fourth proportional to 502,655.60, 702,143.20 and 502,655.60 is: 702,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,655.60 : 702,143.20 = 502,655.60 : x
  2. Step 2: Convert to fraction form
    502,655.60/702,143.20 = 502,655.60/x
  3. Step 3: Cross multiply
    502,655.60x = 702,143.20 × 502,655.60
  4. Step 4: Simplify right side
    502,655.60x = 352,936,211,481.92
  5. Step 5: Solve for x
    x = 352,936,211,481.92/502,655.60
  6. Step 6: Final answer
    x = 702,143.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.