Home / 638,117.80-957,176.70-622,371.40

Finding the Fourth Proportional to 638,117.80, 957,176.70 and 622,371.40

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Solution

The fourth proportional to 638,117.80, 957,176.70 and 622,371.40 is: 933,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,117.80 : 957,176.70 = 622,371.40 : x
  2. Step 2: Convert to fraction form
    638,117.80/957,176.70 = 622,371.40/x
  3. Step 3: Cross multiply
    638,117.80x = 957,176.70 × 622,371.40
  4. Step 4: Simplify right side
    638,117.80x = 595,719,402,826.38
  5. Step 5: Solve for x
    x = 595,719,402,826.38/638,117.80
  6. Step 6: Final answer
    x = 933,557.10

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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.