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Finding the Fourth Proportional to 556,815.64, 834,814.50 and 177,518.20

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Solution

The fourth proportional to 556,815.64, 834,814.50 and 177,518.20 is: 266,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,815.64 : 834,814.50 = 177,518.20 : x
  2. Step 2: Convert to fraction form
    556,815.64/834,814.50 = 177,518.20/x
  3. Step 3: Cross multiply
    556,815.64x = 834,814.50 × 177,518.20
  4. Step 4: Simplify right side
    556,815.64x = 148,194,767,373.90
  5. Step 5: Solve for x
    x = 148,194,767,373.90/556,815.64
  6. Step 6: Final answer
    x = 266,146.92

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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.