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Finding the Fourth Proportional to 549,904.60, 824,856.90 and 360,947.80

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Solution

The fourth proportional to 549,904.60, 824,856.90 and 360,947.80 is: 541,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,904.60 : 824,856.90 = 360,947.80 : x
  2. Step 2: Convert to fraction form
    549,904.60/824,856.90 = 360,947.80/x
  3. Step 3: Cross multiply
    549,904.60x = 824,856.90 × 360,947.80
  4. Step 4: Simplify right side
    549,904.60x = 297,730,283,369.82
  5. Step 5: Solve for x
    x = 297,730,283,369.82/549,904.60
  6. Step 6: Final answer
    x = 541,421.70

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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.