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Finding the Fourth Proportional to 527,592.69, 728,075.39 and 285,875.12

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Solution

The fourth proportional to 527,592.69, 728,075.39 and 285,875.12 is: 394,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,592.69 : 728,075.39 = 285,875.12 : x
  2. Step 2: Convert to fraction form
    527,592.69/728,075.39 = 285,875.12/x
  3. Step 3: Cross multiply
    527,592.69x = 728,075.39 × 285,875.12
  4. Step 4: Simplify right side
    527,592.69x = 208,138,639,876.11
  5. Step 5: Solve for x
    x = 208,138,639,876.11/527,592.69
  6. Step 6: Final answer
    x = 394,506.30

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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.