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Finding the Fourth Proportional to 431,402.61, 595,337.59 and 250,221.81

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Solution

The fourth proportional to 431,402.61, 595,337.59 and 250,221.81 is: 345,307.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,402.61 : 595,337.59 = 250,221.81 : x
  2. Step 2: Convert to fraction form
    431,402.61/595,337.59 = 250,221.81/x
  3. Step 3: Cross multiply
    431,402.61x = 595,337.59 × 250,221.81
  4. Step 4: Simplify right side
    431,402.61x = 148,966,445,728.60
  5. Step 5: Solve for x
    x = 148,966,445,728.60/431,402.61
  6. Step 6: Final answer
    x = 345,307.25

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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.