Home / 663,252.19-915,028.20-408,160.51

Finding the Fourth Proportional to 663,252.19, 915,028.20 and 408,160.51

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Solution

The fourth proportional to 663,252.19, 915,028.20 and 408,160.51 is: 563,101.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,252.19 : 915,028.20 = 408,160.51 : x
  2. Step 2: Convert to fraction form
    663,252.19/915,028.20 = 408,160.51/x
  3. Step 3: Cross multiply
    663,252.19x = 915,028.20 × 408,160.51
  4. Step 4: Simplify right side
    663,252.19x = 373,478,376,776.38
  5. Step 5: Solve for x
    x = 373,478,376,776.38/663,252.19
  6. Step 6: Final answer
    x = 563,101.61

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.