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Finding the Fourth Proportional to 517,610.08, 714,312.72 and 291,255.52

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Solution

The fourth proportional to 517,610.08, 714,312.72 and 291,255.52 is: 401,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,610.08 : 714,312.72 = 291,255.52 : x
  2. Step 2: Convert to fraction form
    517,610.08/714,312.72 = 291,255.52/x
  3. Step 3: Cross multiply
    517,610.08x = 714,312.72 × 291,255.52
  4. Step 4: Simplify right side
    517,610.08x = 208,047,522,706.21
  5. Step 5: Solve for x
    x = 208,047,522,706.21/517,610.08
  6. Step 6: Final answer
    x = 401,938.70

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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.