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Finding the Fourth Proportional to 524,748.40, 787,122.60 and 192,281.20

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Solution

The fourth proportional to 524,748.40, 787,122.60 and 192,281.20 is: 288,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,748.40 : 787,122.60 = 192,281.20 : x
  2. Step 2: Convert to fraction form
    524,748.40/787,122.60 = 192,281.20/x
  3. Step 3: Cross multiply
    524,748.40x = 787,122.60 × 192,281.20
  4. Step 4: Simplify right side
    524,748.40x = 151,348,878,075.12
  5. Step 5: Solve for x
    x = 151,348,878,075.12/524,748.40
  6. Step 6: Final answer
    x = 288,421.80

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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.