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Finding the Fourth Proportional to 585,109.40, 877,664.10 and 304,590.20

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Solution

The fourth proportional to 585,109.40, 877,664.10 and 304,590.20 is: 456,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,109.40 : 877,664.10 = 304,590.20 : x
  2. Step 2: Convert to fraction form
    585,109.40/877,664.10 = 304,590.20/x
  3. Step 3: Cross multiply
    585,109.40x = 877,664.10 × 304,590.20
  4. Step 4: Simplify right side
    585,109.40x = 267,327,883,751.82
  5. Step 5: Solve for x
    x = 267,327,883,751.82/585,109.40
  6. Step 6: Final answer
    x = 456,885.30

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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.