Home / 1,187,557.60-1,781,336.40-288,992.20

Finding the Fourth Proportional to 1,187,557.60, 1,781,336.40 and 288,992.20

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Solution

The fourth proportional to 1,187,557.60, 1,781,336.40 and 288,992.20 is: 433,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,557.60 : 1,781,336.40 = 288,992.20 : x
  2. Step 2: Convert to fraction form
    1,187,557.60/1,781,336.40 = 288,992.20/x
  3. Step 3: Cross multiply
    1,187,557.60x = 1,781,336.40 × 288,992.20
  4. Step 4: Simplify right side
    1,187,557.60x = 514,792,325,176.08
  5. Step 5: Solve for x
    x = 514,792,325,176.08/1,187,557.60
  6. Step 6: Final answer
    x = 433,488.30

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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.