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Finding the Fourth Proportional to 316,623.20, 474,013.20 and 307,407.20

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Solution

The fourth proportional to 316,623.20, 474,013.20 and 307,407.20 is: 460,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,623.20 : 474,013.20 = 307,407.20 : x
  2. Step 2: Convert to fraction form
    316,623.20/474,013.20 = 307,407.20/x
  3. Step 3: Cross multiply
    316,623.20x = 474,013.20 × 307,407.20
  4. Step 4: Simplify right side
    316,623.20x = 145,715,070,575.04
  5. Step 5: Solve for x
    x = 145,715,070,575.04/316,623.20
  6. Step 6: Final answer
    x = 460,216.03

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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.