Home / 579,494.20-869,241.30-549,969.70

Finding the Fourth Proportional to 579,494.20, 869,241.30 and 549,969.70

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Solution

The fourth proportional to 579,494.20, 869,241.30 and 549,969.70 is: 824,954.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,494.20 : 869,241.30 = 549,969.70 : x
  2. Step 2: Convert to fraction form
    579,494.20/869,241.30 = 549,969.70/x
  3. Step 3: Cross multiply
    579,494.20x = 869,241.30 × 549,969.70
  4. Step 4: Simplify right side
    579,494.20x = 478,056,376,988.61
  5. Step 5: Solve for x
    x = 478,056,376,988.61/579,494.20
  6. Step 6: Final answer
    x = 824,954.55

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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.