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Finding the Fourth Proportional to 663,117.80, 994,676.70 and 572,916.20

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Solution

The fourth proportional to 663,117.80, 994,676.70 and 572,916.20 is: 859,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,117.80 : 994,676.70 = 572,916.20 : x
  2. Step 2: Convert to fraction form
    663,117.80/994,676.70 = 572,916.20/x
  3. Step 3: Cross multiply
    663,117.80x = 994,676.70 × 572,916.20
  4. Step 4: Simplify right side
    663,117.80x = 569,866,395,192.54
  5. Step 5: Solve for x
    x = 569,866,395,192.54/663,117.80
  6. Step 6: Final answer
    x = 859,374.30

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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.