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Finding the Fourth Proportional to 651,665.70, 977,498.55 and 297,371.70

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Solution

The fourth proportional to 651,665.70, 977,498.55 and 297,371.70 is: 446,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,665.70 : 977,498.55 = 297,371.70 : x
  2. Step 2: Convert to fraction form
    651,665.70/977,498.55 = 297,371.70/x
  3. Step 3: Cross multiply
    651,665.70x = 977,498.55 × 297,371.70
  4. Step 4: Simplify right side
    651,665.70x = 290,680,405,561.04
  5. Step 5: Solve for x
    x = 290,680,405,561.04/651,665.70
  6. Step 6: Final answer
    x = 446,057.55

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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.