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Finding the Fourth Proportional to 614,552.80, 921,829.20 and 362,610.40

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Solution

The fourth proportional to 614,552.80, 921,829.20 and 362,610.40 is: 543,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,552.80 : 921,829.20 = 362,610.40 : x
  2. Step 2: Convert to fraction form
    614,552.80/921,829.20 = 362,610.40/x
  3. Step 3: Cross multiply
    614,552.80x = 921,829.20 × 362,610.40
  4. Step 4: Simplify right side
    614,552.80x = 334,264,854,943.68
  5. Step 5: Solve for x
    x = 334,264,854,943.68/614,552.80
  6. Step 6: Final answer
    x = 543,915.60

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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.