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Finding the Fourth Proportional to 562,278.40, 843,417.60 and 508,040.80

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Solution

The fourth proportional to 562,278.40, 843,417.60 and 508,040.80 is: 762,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,278.40 : 843,417.60 = 508,040.80 : x
  2. Step 2: Convert to fraction form
    562,278.40/843,417.60 = 508,040.80/x
  3. Step 3: Cross multiply
    562,278.40x = 843,417.60 × 508,040.80
  4. Step 4: Simplify right side
    562,278.40x = 428,490,552,238.08
  5. Step 5: Solve for x
    x = 428,490,552,238.08/562,278.40
  6. Step 6: Final answer
    x = 762,061.20

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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.