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Finding the Fourth Proportional to 385,765.80, 532,001.54 and 264,693.48

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Solution

The fourth proportional to 385,765.80, 532,001.54 and 264,693.48 is: 365,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,765.80 : 532,001.54 = 264,693.48 : x
  2. Step 2: Convert to fraction form
    385,765.80/532,001.54 = 264,693.48/x
  3. Step 3: Cross multiply
    385,765.80x = 532,001.54 × 264,693.48
  4. Step 4: Simplify right side
    385,765.80x = 140,817,338,987.96
  5. Step 5: Solve for x
    x = 140,817,338,987.96/385,765.80
  6. Step 6: Final answer
    x = 365,033.24

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1.5x scale

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.