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Finding the Fourth Proportional to 369,714.60, 554,570.10 and 144,916.20

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Solution

The fourth proportional to 369,714.60, 554,570.10 and 144,916.20 is: 217,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,714.60 : 554,570.10 = 144,916.20 : x
  2. Step 2: Convert to fraction form
    369,714.60/554,570.10 = 144,916.20/x
  3. Step 3: Cross multiply
    369,714.60x = 554,570.10 × 144,916.20
  4. Step 4: Simplify right side
    369,714.60x = 80,366,191,525.62
  5. Step 5: Solve for x
    x = 80,366,191,525.62/369,714.60
  6. Step 6: Final answer
    x = 217,373.59

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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.