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Finding the Fourth Proportional to 593,686.20, 890,442.90 and 172,918.20

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Solution

The fourth proportional to 593,686.20, 890,442.90 and 172,918.20 is: 259,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,686.20 : 890,442.90 = 172,918.20 : x
  2. Step 2: Convert to fraction form
    593,686.20/890,442.90 = 172,918.20/x
  3. Step 3: Cross multiply
    593,686.20x = 890,442.90 × 172,918.20
  4. Step 4: Simplify right side
    593,686.20x = 153,973,783,470.78
  5. Step 5: Solve for x
    x = 153,973,783,470.78/593,686.20
  6. Step 6: Final answer
    x = 259,352.13

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Double scale
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1.5x scale

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.