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Finding the Fourth Proportional to 563,326.40, 845,117.60 and 189,387.20

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Solution

The fourth proportional to 563,326.40, 845,117.60 and 189,387.20 is: 284,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,326.40 : 845,117.60 = 189,387.20 : x
  2. Step 2: Convert to fraction form
    563,326.40/845,117.60 = 189,387.20/x
  3. Step 3: Cross multiply
    563,326.40x = 845,117.60 × 189,387.20
  4. Step 4: Simplify right side
    563,326.40x = 160,054,455,934.72
  5. Step 5: Solve for x
    x = 160,054,455,934.72/563,326.40
  6. Step 6: Final answer
    x = 284,123.83

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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.