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Finding the Fourth Proportional to 435,741.40, 653,612.10 and 346,511.80

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Solution

The fourth proportional to 435,741.40, 653,612.10 and 346,511.80 is: 519,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,741.40 : 653,612.10 = 346,511.80 : x
  2. Step 2: Convert to fraction form
    435,741.40/653,612.10 = 346,511.80/x
  3. Step 3: Cross multiply
    435,741.40x = 653,612.10 × 346,511.80
  4. Step 4: Simplify right side
    435,741.40x = 226,484,305,272.78
  5. Step 5: Solve for x
    x = 226,484,305,272.78/435,741.40
  6. Step 6: Final answer
    x = 519,767.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.