Home / 1,128,373.38-1,557,156.69-619,077.78

Finding the Fourth Proportional to 1,128,373.38, 1,557,156.69 and 619,077.78

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Solution

The fourth proportional to 1,128,373.38, 1,557,156.69 and 619,077.78 is: 854,328.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,373.38 : 1,557,156.69 = 619,077.78 : x
  2. Step 2: Convert to fraction form
    1,128,373.38/1,557,156.69 = 619,077.78/x
  3. Step 3: Cross multiply
    1,128,373.38x = 1,557,156.69 × 619,077.78
  4. Step 4: Simplify right side
    1,128,373.38x = 964,001,106,757.35
  5. Step 5: Solve for x
    x = 964,001,106,757.35/1,128,373.38
  6. Step 6: Final answer
    x = 854,328.12

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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.