Home / 649,287.40-973,931.10-410,138.95

Finding the Fourth Proportional to 649,287.40, 973,931.10 and 410,138.95

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Solution

The fourth proportional to 649,287.40, 973,931.10 and 410,138.95 is: 615,208.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,287.40 : 973,931.10 = 410,138.95 : x
  2. Step 2: Convert to fraction form
    649,287.40/973,931.10 = 410,138.95/x
  3. Step 3: Cross multiply
    649,287.40x = 973,931.10 × 410,138.95
  4. Step 4: Simplify right side
    649,287.40x = 399,447,078,726.35
  5. Step 5: Solve for x
    x = 399,447,078,726.35/649,287.40
  6. Step 6: Final answer
    x = 615,208.43

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Double scale
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Similar ratio
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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.