Home / 869,515.40-1,304,273.10-397,123.40

Finding the Fourth Proportional to 869,515.40, 1,304,273.10 and 397,123.40

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Solution

The fourth proportional to 869,515.40, 1,304,273.10 and 397,123.40 is: 595,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,515.40 : 1,304,273.10 = 397,123.40 : x
  2. Step 2: Convert to fraction form
    869,515.40/1,304,273.10 = 397,123.40/x
  3. Step 3: Cross multiply
    869,515.40x = 1,304,273.10 × 397,123.40
  4. Step 4: Simplify right side
    869,515.40x = 517,957,368,000.54
  5. Step 5: Solve for x
    x = 517,957,368,000.54/869,515.40
  6. Step 6: Final answer
    x = 595,685.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 869,516.40, 1,304,274.60 and 397,124.40
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.