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Finding the Fourth Proportional to 624,153.40, 936,230.10 and 579,916.60

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Solution

The fourth proportional to 624,153.40, 936,230.10 and 579,916.60 is: 869,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,153.40 : 936,230.10 = 579,916.60 : x
  2. Step 2: Convert to fraction form
    624,153.40/936,230.10 = 579,916.60/x
  3. Step 3: Cross multiply
    624,153.40x = 936,230.10 × 579,916.60
  4. Step 4: Simplify right side
    624,153.40x = 542,935,376,409.66
  5. Step 5: Solve for x
    x = 542,935,376,409.66/624,153.40
  6. Step 6: Final answer
    x = 869,874.90

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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.