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Finding the Fourth Proportional to 281,607.48, 420,296.13 and 243,488.52

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Solution

The fourth proportional to 281,607.48, 420,296.13 and 243,488.52 is: 363,403.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,607.48 : 420,296.13 = 243,488.52 : x
  2. Step 2: Convert to fraction form
    281,607.48/420,296.13 = 243,488.52/x
  3. Step 3: Cross multiply
    281,607.48x = 420,296.13 × 243,488.52
  4. Step 4: Simplify right side
    281,607.48x = 102,337,282,655.43
  5. Step 5: Solve for x
    x = 102,337,282,655.43/281,607.48
  6. Step 6: Final answer
    x = 363,403.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.