Home / 1,190,045.28-1,785,125.31-391,309.14

Finding the Fourth Proportional to 1,190,045.28, 1,785,125.31 and 391,309.14

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Solution

The fourth proportional to 1,190,045.28, 1,785,125.31 and 391,309.14 is: 586,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,045.28 : 1,785,125.31 = 391,309.14 : x
  2. Step 2: Convert to fraction form
    1,190,045.28/1,785,125.31 = 391,309.14/x
  3. Step 3: Cross multiply
    1,190,045.28x = 1,785,125.31 × 391,309.14
  4. Step 4: Simplify right side
    1,190,045.28x = 698,535,849,848.33
  5. Step 5: Solve for x
    x = 698,535,849,848.33/1,190,045.28
  6. Step 6: Final answer
    x = 586,982.58

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Double scale
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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.