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Finding the Fourth Proportional to 630,104.80, 944,830.80 and 186,815.20

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Solution

The fourth proportional to 630,104.80, 944,830.80 and 186,815.20 is: 280,126.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,104.80 : 944,830.80 = 186,815.20 : x
  2. Step 2: Convert to fraction form
    630,104.80/944,830.80 = 186,815.20/x
  3. Step 3: Cross multiply
    630,104.80x = 944,830.80 × 186,815.20
  4. Step 4: Simplify right side
    630,104.80x = 176,508,754,868.16
  5. Step 5: Solve for x
    x = 176,508,754,868.16/630,104.80
  6. Step 6: Final answer
    x = 280,126.03

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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.