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Finding the Fourth Proportional to 549,491.80, 824,237.70 and 170,411.80

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Solution

The fourth proportional to 549,491.80, 824,237.70 and 170,411.80 is: 255,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,491.80 : 824,237.70 = 170,411.80 : x
  2. Step 2: Convert to fraction form
    549,491.80/824,237.70 = 170,411.80/x
  3. Step 3: Cross multiply
    549,491.80x = 824,237.70 × 170,411.80
  4. Step 4: Simplify right side
    549,491.80x = 140,459,830,084.86
  5. Step 5: Solve for x
    x = 140,459,830,084.86/549,491.80
  6. Step 6: Final answer
    x = 255,617.70

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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.