Home / 852,221.40-1,278,332.10-537,034.20

Finding the Fourth Proportional to 852,221.40, 1,278,332.10 and 537,034.20

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Solution

The fourth proportional to 852,221.40, 1,278,332.10 and 537,034.20 is: 805,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,221.40 : 1,278,332.10 = 537,034.20 : x
  2. Step 2: Convert to fraction form
    852,221.40/1,278,332.10 = 537,034.20/x
  3. Step 3: Cross multiply
    852,221.40x = 1,278,332.10 × 537,034.20
  4. Step 4: Simplify right side
    852,221.40x = 686,508,056,657.82
  5. Step 5: Solve for x
    x = 686,508,056,657.82/852,221.40
  6. Step 6: Final answer
    x = 805,551.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.