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Finding the Fourth Proportional to 542,618.16, 748,657.08 and 313,157.04

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Solution

The fourth proportional to 542,618.16, 748,657.08 and 313,157.04 is: 432,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,618.16 : 748,657.08 = 313,157.04 : x
  2. Step 2: Convert to fraction form
    542,618.16/748,657.08 = 313,157.04/x
  3. Step 3: Cross multiply
    542,618.16x = 748,657.08 × 313,157.04
  4. Step 4: Simplify right side
    542,618.16x = 234,447,235,147.84
  5. Step 5: Solve for x
    x = 234,447,235,147.84/542,618.16
  6. Step 6: Final answer
    x = 432,066.70

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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.