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Finding the Fourth Proportional to 592,359.30, 888,538.95 and 392,904.90

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Solution

The fourth proportional to 592,359.30, 888,538.95 and 392,904.90 is: 589,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,359.30 : 888,538.95 = 392,904.90 : x
  2. Step 2: Convert to fraction form
    592,359.30/888,538.95 = 392,904.90/x
  3. Step 3: Cross multiply
    592,359.30x = 888,538.95 × 392,904.90
  4. Step 4: Simplify right side
    592,359.30x = 349,111,307,295.86
  5. Step 5: Solve for x
    x = 349,111,307,295.86/592,359.30
  6. Step 6: Final answer
    x = 589,357.35

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Double scale
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Similar ratio
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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.