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Finding the Fourth Proportional to 927,000.40, 1,389,188.40 and 814,151.20

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Solution

The fourth proportional to 927,000.40, 1,389,188.40 and 814,151.20 is: 1,220,074.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,000.40 : 1,389,188.40 = 814,151.20 : x
  2. Step 2: Convert to fraction form
    927,000.40/1,389,188.40 = 814,151.20/x
  3. Step 3: Cross multiply
    927,000.40x = 1,389,188.40 × 814,151.20
  4. Step 4: Simplify right side
    927,000.40x = 1,131,009,402,886.08
  5. Step 5: Solve for x
    x = 1,131,009,402,886.08/927,000.40
  6. Step 6: Final answer
    x = 1,220,074.34

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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.