Home / 865,705.70-1,298,558.55-546,841.10

Finding the Fourth Proportional to 865,705.70, 1,298,558.55 and 546,841.10

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Solution

The fourth proportional to 865,705.70, 1,298,558.55 and 546,841.10 is: 820,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,705.70 : 1,298,558.55 = 546,841.10 : x
  2. Step 2: Convert to fraction form
    865,705.70/1,298,558.55 = 546,841.10/x
  3. Step 3: Cross multiply
    865,705.70x = 1,298,558.55 × 546,841.10
  4. Step 4: Simplify right side
    865,705.70x = 710,105,185,896.41
  5. Step 5: Solve for x
    x = 710,105,185,896.41/865,705.70
  6. Step 6: Final answer
    x = 820,261.65

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