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Finding the Fourth Proportional to 696,002.80, 972,304.40 and 696,002.80

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Solution

The fourth proportional to 696,002.80, 972,304.40 and 696,002.80 is: 972,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,002.80 : 972,304.40 = 696,002.80 : x
  2. Step 2: Convert to fraction form
    696,002.80/972,304.40 = 696,002.80/x
  3. Step 3: Cross multiply
    696,002.80x = 972,304.40 × 696,002.80
  4. Step 4: Simplify right side
    696,002.80x = 676,726,584,852.32
  5. Step 5: Solve for x
    x = 676,726,584,852.32/696,002.80
  6. Step 6: Final answer
    x = 972,304.40

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.