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Finding the Fourth Proportional to 577,887.20, 866,830.80 and 542,895.20

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Solution

The fourth proportional to 577,887.20, 866,830.80 and 542,895.20 is: 814,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,887.20 : 866,830.80 = 542,895.20 : x
  2. Step 2: Convert to fraction form
    577,887.20/866,830.80 = 542,895.20/x
  3. Step 3: Cross multiply
    577,887.20x = 866,830.80 × 542,895.20
  4. Step 4: Simplify right side
    577,887.20x = 470,598,280,532.16
  5. Step 5: Solve for x
    x = 470,598,280,532.16/577,887.20
  6. Step 6: Final answer
    x = 814,342.80

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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.