Home / 866,063.55-1,298,123.33-416,999.55

Finding the Fourth Proportional to 866,063.55, 1,298,123.33 and 416,999.55

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Solution

The fourth proportional to 866,063.55, 1,298,123.33 and 416,999.55 is: 625,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,063.55 : 1,298,123.33 = 416,999.55 : x
  2. Step 2: Convert to fraction form
    866,063.55/1,298,123.33 = 416,999.55/x
  3. Step 3: Cross multiply
    866,063.55x = 1,298,123.33 × 416,999.55
  4. Step 4: Simplify right side
    866,063.55x = 541,316,842,369.50
  5. Step 5: Solve for x
    x = 541,316,842,369.50/866,063.55
  6. Step 6: Final answer
    x = 625,031.32

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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.