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Finding the Fourth Proportional to 696,058.80, 972,382.80 and 696,058.80

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Solution

The fourth proportional to 696,058.80, 972,382.80 and 696,058.80 is: 972,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,058.80 : 972,382.80 = 696,058.80 : x
  2. Step 2: Convert to fraction form
    696,058.80/972,382.80 = 696,058.80/x
  3. Step 3: Cross multiply
    696,058.80x = 972,382.80 × 696,058.80
  4. Step 4: Simplify right side
    696,058.80x = 676,835,604,908.64
  5. Step 5: Solve for x
    x = 676,835,604,908.64/696,058.80
  6. Step 6: Final answer
    x = 972,382.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.