Home / 714,437.20-986,741.61-470,512.36

Finding the Fourth Proportional to 714,437.20, 986,741.61 and 470,512.36

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Solution

The fourth proportional to 714,437.20, 986,741.61 and 470,512.36 is: 649,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,437.20 : 986,741.61 = 470,512.36 : x
  2. Step 2: Convert to fraction form
    714,437.20/986,741.61 = 470,512.36/x
  3. Step 3: Cross multiply
    714,437.20x = 986,741.61 × 470,512.36
  4. Step 4: Simplify right side
    714,437.20x = 464,274,121,278.74
  5. Step 5: Solve for x
    x = 464,274,121,278.74/714,437.20
  6. Step 6: Final answer
    x = 649,845.95

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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.