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Finding the Fourth Proportional to 653,220.70, 901,421.40 and 366,752.86

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Solution

The fourth proportional to 653,220.70, 901,421.40 and 366,752.86 is: 506,105.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,220.70 : 901,421.40 = 366,752.86 : x
  2. Step 2: Convert to fraction form
    653,220.70/901,421.40 = 366,752.86/x
  3. Step 3: Cross multiply
    653,220.70x = 901,421.40 × 366,752.86
  4. Step 4: Simplify right side
    653,220.70x = 330,598,876,515.20
  5. Step 5: Solve for x
    x = 330,598,876,515.20/653,220.70
  6. Step 6: Final answer
    x = 506,105.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.