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Finding the Fourth Proportional to 316,870.60, 475,565.10 and 306,502.60

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Solution

The fourth proportional to 316,870.60, 475,565.10 and 306,502.60 is: 460,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,870.60 : 475,565.10 = 306,502.60 : x
  2. Step 2: Convert to fraction form
    316,870.60/475,565.10 = 306,502.60/x
  3. Step 3: Cross multiply
    316,870.60x = 475,565.10 × 306,502.60
  4. Step 4: Simplify right side
    316,870.60x = 145,761,939,619.26
  5. Step 5: Solve for x
    x = 145,761,939,619.26/316,870.60
  6. Step 6: Final answer
    x = 460,004.62

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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.