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Finding the Fourth Proportional to 559,641.20, 839,461.80 and 180,561.20

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Solution

The fourth proportional to 559,641.20, 839,461.80 and 180,561.20 is: 270,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,641.20 : 839,461.80 = 180,561.20 : x
  2. Step 2: Convert to fraction form
    559,641.20/839,461.80 = 180,561.20/x
  3. Step 3: Cross multiply
    559,641.20x = 839,461.80 × 180,561.20
  4. Step 4: Simplify right side
    559,641.20x = 151,574,229,962.16
  5. Step 5: Solve for x
    x = 151,574,229,962.16/559,641.20
  6. Step 6: Final answer
    x = 270,841.80

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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.