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Finding the Fourth Proportional to 475,390.48, 656,046.12 and 260,528.80

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Solution

The fourth proportional to 475,390.48, 656,046.12 and 260,528.80 is: 359,533.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,390.48 : 656,046.12 = 260,528.80 : x
  2. Step 2: Convert to fraction form
    475,390.48/656,046.12 = 260,528.80/x
  3. Step 3: Cross multiply
    475,390.48x = 656,046.12 × 260,528.80
  4. Step 4: Simplify right side
    475,390.48x = 170,918,908,388.26
  5. Step 5: Solve for x
    x = 170,918,908,388.26/475,390.48
  6. Step 6: Final answer
    x = 359,533.72

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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.