Home / 891,275.18-1,230,116.97-528,898.85

Finding the Fourth Proportional to 891,275.18, 1,230,116.97 and 528,898.85

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Solution

The fourth proportional to 891,275.18, 1,230,116.97 and 528,898.85 is: 729,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,275.18 : 1,230,116.97 = 528,898.85 : x
  2. Step 2: Convert to fraction form
    891,275.18/1,230,116.97 = 528,898.85/x
  3. Step 3: Cross multiply
    891,275.18x = 1,230,116.97 × 528,898.85
  4. Step 4: Simplify right side
    891,275.18x = 650,607,450,798.49
  5. Step 5: Solve for x
    x = 650,607,450,798.49/891,275.18
  6. Step 6: Final answer
    x = 729,973.71

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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.