Home / 891,108.40-1,229,794.76-509,127

Finding the Fourth Proportional to 891,108.40, 1,229,794.76 and 509,127

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Solution

The fourth proportional to 891,108.40, 1,229,794.76 and 509,127 is: 702,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,108.40 : 1,229,794.76 = 509,127 : x
  2. Step 2: Convert to fraction form
    891,108.40/1,229,794.76 = 509,127/x
  3. Step 3: Cross multiply
    891,108.40x = 1,229,794.76 × 509,127
  4. Step 4: Simplify right side
    891,108.40x = 626,121,716,774.52
  5. Step 5: Solve for x
    x = 626,121,716,774.52/891,108.40
  6. Step 6: Final answer
    x = 702,632.49

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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.