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Finding the Fourth Proportional to 558,516.30, 837,774.45 and 542,964.30

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Solution

The fourth proportional to 558,516.30, 837,774.45 and 542,964.30 is: 814,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,516.30 : 837,774.45 = 542,964.30 : x
  2. Step 2: Convert to fraction form
    558,516.30/837,774.45 = 542,964.30/x
  3. Step 3: Cross multiply
    558,516.30x = 837,774.45 × 542,964.30
  4. Step 4: Simplify right side
    558,516.30x = 454,881,617,802.14
  5. Step 5: Solve for x
    x = 454,881,617,802.14/558,516.30
  6. Step 6: Final answer
    x = 814,446.45

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Half scale
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Double scale
Find fourth proportional to 558,517.30, 837,775.95 and 542,965.30
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.