Home / 521,569.20-782,353.80-403,325.40

Finding the Fourth Proportional to 521,569.20, 782,353.80 and 403,325.40

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Solution

The fourth proportional to 521,569.20, 782,353.80 and 403,325.40 is: 604,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,569.20 : 782,353.80 = 403,325.40 : x
  2. Step 2: Convert to fraction form
    521,569.20/782,353.80 = 403,325.40/x
  3. Step 3: Cross multiply
    521,569.20x = 782,353.80 × 403,325.40
  4. Step 4: Simplify right side
    521,569.20x = 315,543,159,326.52
  5. Step 5: Solve for x
    x = 315,543,159,326.52/521,569.20
  6. Step 6: Final answer
    x = 604,988.10

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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.