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Finding the Fourth Proportional to 886,390.89, 1,330,001.53 and 436,866.71

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Solution

The fourth proportional to 886,390.89, 1,330,001.53 and 436,866.71 is: 655,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,390.89 : 1,330,001.53 = 436,866.71 : x
  2. Step 2: Convert to fraction form
    886,390.89/1,330,001.53 = 436,866.71/x
  3. Step 3: Cross multiply
    886,390.89x = 1,330,001.53 × 436,866.71
  4. Step 4: Simplify right side
    886,390.89x = 581,033,392,706.07
  5. Step 5: Solve for x
    x = 581,033,392,706.07/886,390.89
  6. Step 6: Final answer
    x = 655,504.70

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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.