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Finding the Fourth Proportional to 504,165.40, 756,248.10 and 317,541.40

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Solution

The fourth proportional to 504,165.40, 756,248.10 and 317,541.40 is: 476,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,165.40 : 756,248.10 = 317,541.40 : x
  2. Step 2: Convert to fraction form
    504,165.40/756,248.10 = 317,541.40/x
  3. Step 3: Cross multiply
    504,165.40x = 756,248.10 × 317,541.40
  4. Step 4: Simplify right side
    504,165.40x = 240,140,080,421.34
  5. Step 5: Solve for x
    x = 240,140,080,421.34/504,165.40
  6. Step 6: Final answer
    x = 476,312.10

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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.