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Finding the Fourth Proportional to 442,303.20, 662,482.32 and 365,531.64

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Solution

The fourth proportional to 442,303.20, 662,482.32 and 365,531.64 is: 547,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,303.20 : 662,482.32 = 365,531.64 : x
  2. Step 2: Convert to fraction form
    442,303.20/662,482.32 = 365,531.64/x
  3. Step 3: Cross multiply
    442,303.20x = 662,482.32 × 365,531.64
  4. Step 4: Simplify right side
    442,303.20x = 242,158,248,900.61
  5. Step 5: Solve for x
    x = 242,158,248,900.61/442,303.20
  6. Step 6: Final answer
    x = 547,493.78

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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.