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Finding the Fourth Proportional to 621,337.20, 932,005.80 and 556,383.30

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Solution

The fourth proportional to 621,337.20, 932,005.80 and 556,383.30 is: 834,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,337.20 : 932,005.80 = 556,383.30 : x
  2. Step 2: Convert to fraction form
    621,337.20/932,005.80 = 556,383.30/x
  3. Step 3: Cross multiply
    621,337.20x = 932,005.80 × 556,383.30
  4. Step 4: Simplify right side
    621,337.20x = 518,552,462,623.14
  5. Step 5: Solve for x
    x = 518,552,462,623.14/621,337.20
  6. Step 6: Final answer
    x = 834,574.95

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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.