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Finding the Fourth Proportional to 584,452.20, 876,678.30 and 479,389.80

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Solution

The fourth proportional to 584,452.20, 876,678.30 and 479,389.80 is: 719,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,452.20 : 876,678.30 = 479,389.80 : x
  2. Step 2: Convert to fraction form
    584,452.20/876,678.30 = 479,389.80/x
  3. Step 3: Cross multiply
    584,452.20x = 876,678.30 × 479,389.80
  4. Step 4: Simplify right side
    584,452.20x = 420,270,634,901.34
  5. Step 5: Solve for x
    x = 420,270,634,901.34/584,452.20
  6. Step 6: Final answer
    x = 719,084.70

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Double scale
Find fourth proportional to 584,453.20, 876,679.80 and 479,390.80
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.