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Finding the Fourth Proportional to 615,095.40, 922,643.10 and 550,813.80

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Solution

The fourth proportional to 615,095.40, 922,643.10 and 550,813.80 is: 826,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,095.40 : 922,643.10 = 550,813.80 : x
  2. Step 2: Convert to fraction form
    615,095.40/922,643.10 = 550,813.80/x
  3. Step 3: Cross multiply
    615,095.40x = 922,643.10 × 550,813.80
  4. Step 4: Simplify right side
    615,095.40x = 508,204,551,954.78
  5. Step 5: Solve for x
    x = 508,204,551,954.78/615,095.40
  6. Step 6: Final answer
    x = 826,220.70

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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.