Home / 637,686.11-880,046.63-351,206.12

Finding the Fourth Proportional to 637,686.11, 880,046.63 and 351,206.12

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Solution

The fourth proportional to 637,686.11, 880,046.63 and 351,206.12 is: 484,686.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,686.11 : 880,046.63 = 351,206.12 : x
  2. Step 2: Convert to fraction form
    637,686.11/880,046.63 = 351,206.12/x
  3. Step 3: Cross multiply
    637,686.11x = 880,046.63 × 351,206.12
  4. Step 4: Simplify right side
    637,686.11x = 309,077,762,341.38
  5. Step 5: Solve for x
    x = 309,077,762,341.38/637,686.11
  6. Step 6: Final answer
    x = 484,686.36

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.