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Finding the Fourth Proportional to 714,873.81, 986,279.24 and 456,901.76

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Solution

The fourth proportional to 714,873.81, 986,279.24 and 456,901.76 is: 630,366.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,873.81 : 986,279.24 = 456,901.76 : x
  2. Step 2: Convert to fraction form
    714,873.81/986,279.24 = 456,901.76/x
  3. Step 3: Cross multiply
    714,873.81x = 986,279.24 × 456,901.76
  4. Step 4: Simplify right side
    714,873.81x = 450,632,720,607.46
  5. Step 5: Solve for x
    x = 450,632,720,607.46/714,873.81
  6. Step 6: Final answer
    x = 630,366.81

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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.