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Finding the Fourth Proportional to 617,981.70, 926,972.55 and 197,300.10

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Solution

The fourth proportional to 617,981.70, 926,972.55 and 197,300.10 is: 295,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,981.70 : 926,972.55 = 197,300.10 : x
  2. Step 2: Convert to fraction form
    617,981.70/926,972.55 = 197,300.10/x
  3. Step 3: Cross multiply
    617,981.70x = 926,972.55 × 197,300.10
  4. Step 4: Simplify right side
    617,981.70x = 182,891,776,812.26
  5. Step 5: Solve for x
    x = 182,891,776,812.26/617,981.70
  6. Step 6: Final answer
    x = 295,950.15

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Half scale
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Double scale
Find fourth proportional to 617,982.70, 926,974.05 and 197,301.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.