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Finding the Fourth Proportional to 543,281.32, 749,690.69 and 301,544.88

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Solution

The fourth proportional to 543,281.32, 749,690.69 and 301,544.88 is: 416,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,281.32 : 749,690.69 = 301,544.88 : x
  2. Step 2: Convert to fraction form
    543,281.32/749,690.69 = 301,544.88/x
  3. Step 3: Cross multiply
    543,281.32x = 749,690.69 × 301,544.88
  4. Step 4: Simplify right side
    543,281.32x = 226,065,385,404.71
  5. Step 5: Solve for x
    x = 226,065,385,404.71/543,281.32
  6. Step 6: Final answer
    x = 416,111.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.