Home / 641,344.80-962,017.20-537,146.40

Finding the Fourth Proportional to 641,344.80, 962,017.20 and 537,146.40

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Solution

The fourth proportional to 641,344.80, 962,017.20 and 537,146.40 is: 805,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,344.80 : 962,017.20 = 537,146.40 : x
  2. Step 2: Convert to fraction form
    641,344.80/962,017.20 = 537,146.40/x
  3. Step 3: Cross multiply
    641,344.80x = 962,017.20 × 537,146.40
  4. Step 4: Simplify right side
    641,344.80x = 516,744,075,718.08
  5. Step 5: Solve for x
    x = 516,744,075,718.08/641,344.80
  6. Step 6: Final answer
    x = 805,719.60

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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.