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Finding the Fourth Proportional to 895,552.80, 1,235,860.92 and 487,648.32

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Solution

The fourth proportional to 895,552.80, 1,235,860.92 and 487,648.32 is: 672,953.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,552.80 : 1,235,860.92 = 487,648.32 : x
  2. Step 2: Convert to fraction form
    895,552.80/1,235,860.92 = 487,648.32/x
  3. Step 3: Cross multiply
    895,552.80x = 1,235,860.92 × 487,648.32
  4. Step 4: Simplify right side
    895,552.80x = 602,665,501,391.65
  5. Step 5: Solve for x
    x = 602,665,501,391.65/895,552.80
  6. Step 6: Final answer
    x = 672,953.62

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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.