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Finding the Fourth Proportional to 459,701.80, 688,272.90 and 234,575.80

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Solution

The fourth proportional to 459,701.80, 688,272.90 and 234,575.80 is: 351,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,701.80 : 688,272.90 = 234,575.80 : x
  2. Step 2: Convert to fraction form
    459,701.80/688,272.90 = 234,575.80/x
  3. Step 3: Cross multiply
    459,701.80x = 688,272.90 × 234,575.80
  4. Step 4: Simplify right side
    459,701.80x = 161,452,166,135.82
  5. Step 5: Solve for x
    x = 161,452,166,135.82/459,701.80
  6. Step 6: Final answer
    x = 351,210.65

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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.