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Finding the Fourth Proportional to 614,352.15, 921,528.23 and 348,631.65

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Solution

The fourth proportional to 614,352.15, 921,528.23 and 348,631.65 is: 522,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,352.15 : 921,528.23 = 348,631.65 : x
  2. Step 2: Convert to fraction form
    614,352.15/921,528.23 = 348,631.65/x
  3. Step 3: Cross multiply
    614,352.15x = 921,528.23 × 348,631.65
  4. Step 4: Simplify right side
    614,352.15x = 321,273,905,603.32
  5. Step 5: Solve for x
    x = 321,273,905,603.32/614,352.15
  6. Step 6: Final answer
    x = 522,947.48

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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.