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Finding the Fourth Proportional to 614,311.76, 921,482.22 and 165,033.20

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Solution

The fourth proportional to 614,311.76, 921,482.22 and 165,033.20 is: 247,553.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,311.76 : 921,482.22 = 165,033.20 : x
  2. Step 2: Convert to fraction form
    614,311.76/921,482.22 = 165,033.20/x
  3. Step 3: Cross multiply
    614,311.76x = 921,482.22 × 165,033.20
  4. Step 4: Simplify right side
    614,311.76x = 152,075,159,509.70
  5. Step 5: Solve for x
    x = 152,075,159,509.70/614,311.76
  6. Step 6: Final answer
    x = 247,553.72

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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.