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Finding the Fourth Proportional to 549,983.90, 824,975.85 and 483,499.10

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Solution

The fourth proportional to 549,983.90, 824,975.85 and 483,499.10 is: 725,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,983.90 : 824,975.85 = 483,499.10 : x
  2. Step 2: Convert to fraction form
    549,983.90/824,975.85 = 483,499.10/x
  3. Step 3: Cross multiply
    549,983.90x = 824,975.85 × 483,499.10
  4. Step 4: Simplify right side
    549,983.90x = 398,875,080,996.74
  5. Step 5: Solve for x
    x = 398,875,080,996.74/549,983.90
  6. Step 6: Final answer
    x = 725,248.65

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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.