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Finding the Fourth Proportional to 585,011.25, 877,516.88 and 141,779.25

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Solution

The fourth proportional to 585,011.25, 877,516.88 and 141,779.25 is: 212,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,011.25 : 877,516.88 = 141,779.25 : x
  2. Step 2: Convert to fraction form
    585,011.25/877,516.88 = 141,779.25/x
  3. Step 3: Cross multiply
    585,011.25x = 877,516.88 × 141,779.25
  4. Step 4: Simplify right side
    585,011.25x = 124,413,684,399.84
  5. Step 5: Solve for x
    x = 124,413,684,399.84/585,011.25
  6. Step 6: Final answer
    x = 212,668.88

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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.