Home / 649,272.80-973,909.20-410,124.35

Finding the Fourth Proportional to 649,272.80, 973,909.20 and 410,124.35

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Solution

The fourth proportional to 649,272.80, 973,909.20 and 410,124.35 is: 615,186.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,272.80 : 973,909.20 = 410,124.35 : x
  2. Step 2: Convert to fraction form
    649,272.80/973,909.20 = 410,124.35/x
  3. Step 3: Cross multiply
    649,272.80x = 973,909.20 × 410,124.35
  4. Step 4: Simplify right side
    649,272.80x = 399,423,877,609.02
  5. Step 5: Solve for x
    x = 399,423,877,609.02/649,272.80
  6. Step 6: Final answer
    x = 615,186.53

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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.