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Finding the Fourth Proportional to 317,424.14, 438,045.08 and 181,461.10

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Solution

The fourth proportional to 317,424.14, 438,045.08 and 181,461.10 is: 250,416.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,424.14 : 438,045.08 = 181,461.10 : x
  2. Step 2: Convert to fraction form
    317,424.14/438,045.08 = 181,461.10/x
  3. Step 3: Cross multiply
    317,424.14x = 438,045.08 × 181,461.10
  4. Step 4: Simplify right side
    317,424.14x = 79,488,142,066.39
  5. Step 5: Solve for x
    x = 79,488,142,066.39/317,424.14
  6. Step 6: Final answer
    x = 250,416.18

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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.