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Finding the Fourth Proportional to 517,561.60, 714,233.55 and 291,207.10

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Solution

The fourth proportional to 517,561.60, 714,233.55 and 291,207.10 is: 401,864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,561.60 : 714,233.55 = 291,207.10 : x
  2. Step 2: Convert to fraction form
    517,561.60/714,233.55 = 291,207.10/x
  3. Step 3: Cross multiply
    517,561.60x = 714,233.55 × 291,207.10
  4. Step 4: Simplify right side
    517,561.60x = 207,989,880,818.21
  5. Step 5: Solve for x
    x = 207,989,880,818.21/517,561.60
  6. Step 6: Final answer
    x = 401,864.98

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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.