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Finding the Fourth Proportional to 584,990.40, 877,485.60 and 304,471.20

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Solution

The fourth proportional to 584,990.40, 877,485.60 and 304,471.20 is: 456,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,990.40 : 877,485.60 = 304,471.20 : x
  2. Step 2: Convert to fraction form
    584,990.40/877,485.60 = 304,471.20/x
  3. Step 3: Cross multiply
    584,990.40x = 877,485.60 × 304,471.20
  4. Step 4: Simplify right side
    584,990.40x = 267,169,093,614.72
  5. Step 5: Solve for x
    x = 267,169,093,614.72/584,990.40
  6. Step 6: Final answer
    x = 456,706.80

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Double scale
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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.