Home / 866,064.30-1,298,124.45-417,000.30

Finding the Fourth Proportional to 866,064.30, 1,298,124.45 and 417,000.30

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Solution

The fourth proportional to 866,064.30, 1,298,124.45 and 417,000.30 is: 625,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,064.30 : 1,298,124.45 = 417,000.30 : x
  2. Step 2: Convert to fraction form
    866,064.30/1,298,124.45 = 417,000.30/x
  3. Step 3: Cross multiply
    866,064.30x = 1,298,124.45 × 417,000.30
  4. Step 4: Simplify right side
    866,064.30x = 541,318,285,087.34
  5. Step 5: Solve for x
    x = 541,318,285,087.34/866,064.30
  6. Step 6: Final answer
    x = 625,032.44

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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.