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Finding the Fourth Proportional to 572,416.20, 858,624.30 and 404,454.60

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Solution

The fourth proportional to 572,416.20, 858,624.30 and 404,454.60 is: 606,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,416.20 : 858,624.30 = 404,454.60 : x
  2. Step 2: Convert to fraction form
    572,416.20/858,624.30 = 404,454.60/x
  3. Step 3: Cross multiply
    572,416.20x = 858,624.30 × 404,454.60
  4. Step 4: Simplify right side
    572,416.20x = 347,274,547,806.78
  5. Step 5: Solve for x
    x = 347,274,547,806.78/572,416.20
  6. Step 6: Final answer
    x = 606,681.90

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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.