Home / 781,415.96-1,172,117.35-610,781.20

Finding the Fourth Proportional to 781,415.96, 1,172,117.35 and 610,781.20

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Solution

The fourth proportional to 781,415.96, 1,172,117.35 and 610,781.20 is: 916,166.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,415.96 : 1,172,117.35 = 610,781.20 : x
  2. Step 2: Convert to fraction form
    781,415.96/1,172,117.35 = 610,781.20/x
  3. Step 3: Cross multiply
    781,415.96x = 1,172,117.35 × 610,781.20
  4. Step 4: Simplify right side
    781,415.96x = 715,907,237,294.47
  5. Step 5: Solve for x
    x = 715,907,237,294.47/781,415.96
  6. Step 6: Final answer
    x = 916,166.65

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Double scale
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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.