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Finding the Fourth Proportional to 593,445.61, 818,901.12 and 351,689.23

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Solution

The fourth proportional to 593,445.61, 818,901.12 and 351,689.23 is: 485,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,445.61 : 818,901.12 = 351,689.23 : x
  2. Step 2: Convert to fraction form
    593,445.61/818,901.12 = 351,689.23/x
  3. Step 3: Cross multiply
    593,445.61x = 818,901.12 × 351,689.23
  4. Step 4: Simplify right side
    593,445.61x = 287,998,704,338.94
  5. Step 5: Solve for x
    x = 287,998,704,338.94/593,445.61
  6. Step 6: Final answer
    x = 485,299.24

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Double scale
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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.