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Finding the Fourth Proportional to 521,050.24, 719,062.20 and 291,605.72

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Solution

The fourth proportional to 521,050.24, 719,062.20 and 291,605.72 is: 402,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,050.24 : 719,062.20 = 291,605.72 : x
  2. Step 2: Convert to fraction form
    521,050.24/719,062.20 = 291,605.72/x
  3. Step 3: Cross multiply
    521,050.24x = 719,062.20 × 291,605.72
  4. Step 4: Simplify right side
    521,050.24x = 209,682,650,555.78
  5. Step 5: Solve for x
    x = 209,682,650,555.78/521,050.24
  6. Step 6: Final answer
    x = 402,423.10

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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.