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Finding the Fourth Proportional to 569,613.40, 854,420.10 and 148,931.80

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Solution

The fourth proportional to 569,613.40, 854,420.10 and 148,931.80 is: 223,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,613.40 : 854,420.10 = 148,931.80 : x
  2. Step 2: Convert to fraction form
    569,613.40/854,420.10 = 148,931.80/x
  3. Step 3: Cross multiply
    569,613.40x = 854,420.10 × 148,931.80
  4. Step 4: Simplify right side
    569,613.40x = 127,250,323,449.18
  5. Step 5: Solve for x
    x = 127,250,323,449.18/569,613.40
  6. Step 6: Final answer
    x = 223,397.70

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Similar ratio
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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.