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Finding the Fourth Proportional to 563,329.40, 845,122.10 and 189,390.20

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Solution

The fourth proportional to 563,329.40, 845,122.10 and 189,390.20 is: 284,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,329.40 : 845,122.10 = 189,390.20 : x
  2. Step 2: Convert to fraction form
    563,329.40/845,122.10 = 189,390.20/x
  3. Step 3: Cross multiply
    563,329.40x = 845,122.10 × 189,390.20
  4. Step 4: Simplify right side
    563,329.40x = 160,057,843,543.42
  5. Step 5: Solve for x
    x = 160,057,843,543.42/563,329.40
  6. Step 6: Final answer
    x = 284,128.33

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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.