Home / 1,011,385.28-1,395,592.80-558,649.28

Finding the Fourth Proportional to 1,011,385.28, 1,395,592.80 and 558,649.28

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Solution

The fourth proportional to 1,011,385.28, 1,395,592.80 and 558,649.28 is: 770,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,385.28 : 1,395,592.80 = 558,649.28 : x
  2. Step 2: Convert to fraction form
    1,011,385.28/1,395,592.80 = 558,649.28/x
  3. Step 3: Cross multiply
    1,011,385.28x = 1,395,592.80 × 558,649.28
  4. Step 4: Simplify right side
    1,011,385.28x = 779,646,912,893.18
  5. Step 5: Solve for x
    x = 779,646,912,893.18/1,011,385.28
  6. Step 6: Final answer
    x = 770,870.34

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Double scale
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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.