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Finding the Fourth Proportional to 997,780.68, 1,496,671.02 and 366,421.32

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Solution

The fourth proportional to 997,780.68, 1,496,671.02 and 366,421.32 is: 549,631.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,780.68 : 1,496,671.02 = 366,421.32 : x
  2. Step 2: Convert to fraction form
    997,780.68/1,496,671.02 = 366,421.32/x
  3. Step 3: Cross multiply
    997,780.68x = 1,496,671.02 × 366,421.32
  4. Step 4: Simplify right side
    997,780.68x = 548,412,170,754.15
  5. Step 5: Solve for x
    x = 548,412,170,754.15/997,780.68
  6. Step 6: Final answer
    x = 549,631.98

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Double scale
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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.