Home / 495,139.41-683,187.28-291,115.87

Finding the Fourth Proportional to 495,139.41, 683,187.28 and 291,115.87

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Solution

The fourth proportional to 495,139.41, 683,187.28 and 291,115.87 is: 401,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,139.41 : 683,187.28 = 291,115.87 : x
  2. Step 2: Convert to fraction form
    495,139.41/683,187.28 = 291,115.87/x
  3. Step 3: Cross multiply
    495,139.41x = 683,187.28 × 291,115.87
  4. Step 4: Simplify right side
    495,139.41x = 198,886,656,954.38
  5. Step 5: Solve for x
    x = 198,886,656,954.38/495,139.41
  6. Step 6: Final answer
    x = 401,678.10

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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.