Home / 865,717.70-1,298,576.55-546,853.10

Finding the Fourth Proportional to 865,717.70, 1,298,576.55 and 546,853.10

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Solution

The fourth proportional to 865,717.70, 1,298,576.55 and 546,853.10 is: 820,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,717.70 : 1,298,576.55 = 546,853.10 : x
  2. Step 2: Convert to fraction form
    865,717.70/1,298,576.55 = 546,853.10/x
  3. Step 3: Cross multiply
    865,717.70x = 1,298,576.55 × 546,853.10
  4. Step 4: Simplify right side
    865,717.70x = 710,130,611,954.81
  5. Step 5: Solve for x
    x = 710,130,611,954.81/865,717.70
  6. Step 6: Final answer
    x = 820,279.65

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Half scale
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Double scale
Find fourth proportional to 865,718.70, 1,298,578.05 and 546,854.10
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.