Home / 549,001.20-823,501.80-543,752.40

Finding the Fourth Proportional to 549,001.20, 823,501.80 and 543,752.40

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Solution

The fourth proportional to 549,001.20, 823,501.80 and 543,752.40 is: 815,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,001.20 : 823,501.80 = 543,752.40 : x
  2. Step 2: Convert to fraction form
    549,001.20/823,501.80 = 543,752.40/x
  3. Step 3: Cross multiply
    549,001.20x = 823,501.80 × 543,752.40
  4. Step 4: Simplify right side
    549,001.20x = 447,781,080,154.32
  5. Step 5: Solve for x
    x = 447,781,080,154.32/549,001.20
  6. Step 6: Final answer
    x = 815,628.60

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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.