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Finding the Fourth Proportional to 966,877.60, 1,448,761.20 and 611,255.20

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Solution

The fourth proportional to 966,877.60, 1,448,761.20 and 611,255.20 is: 915,899.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,877.60 : 1,448,761.20 = 611,255.20 : x
  2. Step 2: Convert to fraction form
    966,877.60/1,448,761.20 = 611,255.20/x
  3. Step 3: Cross multiply
    966,877.60x = 1,448,761.20 × 611,255.20
  4. Step 4: Simplify right side
    966,877.60x = 885,562,817,058.24
  5. Step 5: Solve for x
    x = 885,562,817,058.24/966,877.60
  6. Step 6: Final answer
    x = 915,899.61

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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.