Home / 671,943.76-927,215.04-413,779.36

Finding the Fourth Proportional to 671,943.76, 927,215.04 and 413,779.36

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Solution

The fourth proportional to 671,943.76, 927,215.04 and 413,779.36 is: 570,974.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,943.76 : 927,215.04 = 413,779.36 : x
  2. Step 2: Convert to fraction form
    671,943.76/927,215.04 = 413,779.36/x
  3. Step 3: Cross multiply
    671,943.76x = 927,215.04 × 413,779.36
  4. Step 4: Simplify right side
    671,943.76x = 383,662,445,833.57
  5. Step 5: Solve for x
    x = 383,662,445,833.57/671,943.76
  6. Step 6: Final answer
    x = 570,974.04

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Double scale
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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.