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Finding the Fourth Proportional to 867,647.80, 1,301,471.70 and 441,182.80

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Solution

The fourth proportional to 867,647.80, 1,301,471.70 and 441,182.80 is: 661,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,647.80 : 1,301,471.70 = 441,182.80 : x
  2. Step 2: Convert to fraction form
    867,647.80/1,301,471.70 = 441,182.80/x
  3. Step 3: Cross multiply
    867,647.80x = 1,301,471.70 × 441,182.80
  4. Step 4: Simplify right side
    867,647.80x = 574,186,928,726.76
  5. Step 5: Solve for x
    x = 574,186,928,726.76/867,647.80
  6. Step 6: Final answer
    x = 661,774.20

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Double scale
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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.