Home / 865,863.70-1,298,795.55-546,999.10

Finding the Fourth Proportional to 865,863.70, 1,298,795.55 and 546,999.10

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Solution

The fourth proportional to 865,863.70, 1,298,795.55 and 546,999.10 is: 820,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,863.70 : 1,298,795.55 = 546,999.10 : x
  2. Step 2: Convert to fraction form
    865,863.70/1,298,795.55 = 546,999.10/x
  3. Step 3: Cross multiply
    865,863.70x = 1,298,795.55 × 546,999.10
  4. Step 4: Simplify right side
    865,863.70x = 710,439,996,934.01
  5. Step 5: Solve for x
    x = 710,439,996,934.01/865,863.70
  6. Step 6: Final answer
    x = 820,498.65

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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.