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Finding the Fourth Proportional to 612,590.04, 918,885.06 and 191,898.84

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Solution

The fourth proportional to 612,590.04, 918,885.06 and 191,898.84 is: 287,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,590.04 : 918,885.06 = 191,898.84 : x
  2. Step 2: Convert to fraction form
    612,590.04/918,885.06 = 191,898.84/x
  3. Step 3: Cross multiply
    612,590.04x = 918,885.06 × 191,898.84
  4. Step 4: Simplify right side
    612,590.04x = 176,332,977,107.33
  5. Step 5: Solve for x
    x = 176,332,977,107.33/612,590.04
  6. Step 6: Final answer
    x = 287,848.26

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Double scale
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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.