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Finding the Fourth Proportional to 563,713.80, 845,570.70 and 189,697.80

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Solution

The fourth proportional to 563,713.80, 845,570.70 and 189,697.80 is: 284,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,713.80 : 845,570.70 = 189,697.80 : x
  2. Step 2: Convert to fraction form
    563,713.80/845,570.70 = 189,697.80/x
  3. Step 3: Cross multiply
    563,713.80x = 845,570.70 × 189,697.80
  4. Step 4: Simplify right side
    563,713.80x = 160,402,901,534.46
  5. Step 5: Solve for x
    x = 160,402,901,534.46/563,713.80
  6. Step 6: Final answer
    x = 284,546.70

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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.