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Finding the Fourth Proportional to 616,704.10, 851,086.65 and 348,432.10

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Solution

The fourth proportional to 616,704.10, 851,086.65 and 348,432.10 is: 480,856.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,704.10 : 851,086.65 = 348,432.10 : x
  2. Step 2: Convert to fraction form
    616,704.10/851,086.65 = 348,432.10/x
  3. Step 3: Cross multiply
    616,704.10x = 851,086.65 × 348,432.10
  4. Step 4: Simplify right side
    616,704.10x = 296,545,908,741.47
  5. Step 5: Solve for x
    x = 296,545,908,741.47/616,704.10
  6. Step 6: Final answer
    x = 480,856.07

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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.