Home / 261,056.40-391,584.60-83,569.20

Finding the Fourth Proportional to 261,056.40, 391,584.60 and 83,569.20

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Solution

The fourth proportional to 261,056.40, 391,584.60 and 83,569.20 is: 125,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,056.40 : 391,584.60 = 83,569.20 : x
  2. Step 2: Convert to fraction form
    261,056.40/391,584.60 = 83,569.20/x
  3. Step 3: Cross multiply
    261,056.40x = 391,584.60 × 83,569.20
  4. Step 4: Simplify right side
    261,056.40x = 32,724,411,754.32
  5. Step 5: Solve for x
    x = 32,724,411,754.32/261,056.40
  6. Step 6: Final answer
    x = 125,353.80

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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.