Home / 729,098.37-1,006,132.14-397,941.66

Finding the Fourth Proportional to 729,098.37, 1,006,132.14 and 397,941.66

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Solution

The fourth proportional to 729,098.37, 1,006,132.14 and 397,941.66 is: 549,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,098.37 : 1,006,132.14 = 397,941.66 : x
  2. Step 2: Convert to fraction form
    729,098.37/1,006,132.14 = 397,941.66/x
  3. Step 3: Cross multiply
    729,098.37x = 1,006,132.14 × 397,941.66
  4. Step 4: Simplify right side
    729,098.37x = 400,381,893,970.95
  5. Step 5: Solve for x
    x = 400,381,893,970.95/729,098.37
  6. Step 6: Final answer
    x = 549,146.60

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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.