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Finding the Fourth Proportional to 615,036.70, 922,117.65 and 235,810.90

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Solution

The fourth proportional to 615,036.70, 922,117.65 and 235,810.90 is: 353,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,036.70 : 922,117.65 = 235,810.90 : x
  2. Step 2: Convert to fraction form
    615,036.70/922,117.65 = 235,810.90/x
  3. Step 3: Cross multiply
    615,036.70x = 922,117.65 × 235,810.90
  4. Step 4: Simplify right side
    615,036.70x = 217,445,392,952.39
  5. Step 5: Solve for x
    x = 217,445,392,952.39/615,036.70
  6. Step 6: Final answer
    x = 353,548.65

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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.