Home / 891,683.76-1,230,523.61-509,718.77

Finding the Fourth Proportional to 891,683.76, 1,230,523.61 and 509,718.77

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Solution

The fourth proportional to 891,683.76, 1,230,523.61 and 509,718.77 is: 703,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,683.76 : 1,230,523.61 = 509,718.77 : x
  2. Step 2: Convert to fraction form
    891,683.76/1,230,523.61 = 509,718.77/x
  3. Step 3: Cross multiply
    891,683.76x = 1,230,523.61 × 509,718.77
  4. Step 4: Simplify right side
    891,683.76x = 627,220,972,243.95
  5. Step 5: Solve for x
    x = 627,220,972,243.95/891,683.76
  6. Step 6: Final answer
    x = 703,411.90

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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.