Home / 566,111.38-781,235.57-307,988.25

Finding the Fourth Proportional to 566,111.38, 781,235.57 and 307,988.25

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Solution

The fourth proportional to 566,111.38, 781,235.57 and 307,988.25 is: 425,024.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,111.38 : 781,235.57 = 307,988.25 : x
  2. Step 2: Convert to fraction form
    566,111.38/781,235.57 = 307,988.25/x
  3. Step 3: Cross multiply
    566,111.38x = 781,235.57 × 307,988.25
  4. Step 4: Simplify right side
    566,111.38x = 240,611,370,595.93
  5. Step 5: Solve for x
    x = 240,611,370,595.93/566,111.38
  6. Step 6: Final answer
    x = 425,024.79

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Half scale
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Double scale
Find fourth proportional to 566,112.38, 781,236.95 and 307,989.25
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.