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Finding the Fourth Proportional to 440,357.76, 607,697.28 and 239,155.20

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Solution

The fourth proportional to 440,357.76, 607,697.28 and 239,155.20 is: 330,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,357.76 : 607,697.28 = 239,155.20 : x
  2. Step 2: Convert to fraction form
    440,357.76/607,697.28 = 239,155.20/x
  3. Step 3: Cross multiply
    440,357.76x = 607,697.28 × 239,155.20
  4. Step 4: Simplify right side
    440,357.76x = 145,333,964,537.86
  5. Step 5: Solve for x
    x = 145,333,964,537.86/440,357.76
  6. Step 6: Final answer
    x = 330,036.12

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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.