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Finding the Fourth Proportional to 704,726.76, 972,525.48 and 382,436.76

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Solution

The fourth proportional to 704,726.76, 972,525.48 and 382,436.76 is: 527,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,726.76 : 972,525.48 = 382,436.76 : x
  2. Step 2: Convert to fraction form
    704,726.76/972,525.48 = 382,436.76/x
  3. Step 3: Cross multiply
    704,726.76x = 972,525.48 × 382,436.76
  4. Step 4: Simplify right side
    704,726.76x = 371,929,493,588.65
  5. Step 5: Solve for x
    x = 371,929,493,588.65/704,726.76
  6. Step 6: Final answer
    x = 527,764.11

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Half scale
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Double scale
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Similar ratio
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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.