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Finding the Fourth Proportional to 867,607.80, 1,301,411.70 and 548,743.20

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Solution

The fourth proportional to 867,607.80, 1,301,411.70 and 548,743.20 is: 823,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,607.80 : 1,301,411.70 = 548,743.20 : x
  2. Step 2: Convert to fraction form
    867,607.80/1,301,411.70 = 548,743.20/x
  3. Step 3: Cross multiply
    867,607.80x = 1,301,411.70 × 548,743.20
  4. Step 4: Simplify right side
    867,607.80x = 714,140,820,775.44
  5. Step 5: Solve for x
    x = 714,140,820,775.44/867,607.80
  6. Step 6: Final answer
    x = 823,114.80

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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.