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Finding the Fourth Proportional to 584,139.40, 876,209.10 and 397,515.40

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Solution

The fourth proportional to 584,139.40, 876,209.10 and 397,515.40 is: 596,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,139.40 : 876,209.10 = 397,515.40 : x
  2. Step 2: Convert to fraction form
    584,139.40/876,209.10 = 397,515.40/x
  3. Step 3: Cross multiply
    584,139.40x = 876,209.10 × 397,515.40
  4. Step 4: Simplify right side
    584,139.40x = 348,306,610,870.14
  5. Step 5: Solve for x
    x = 348,306,610,870.14/584,139.40
  6. Step 6: Final answer
    x = 596,273.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 584,140.40, 876,210.60 and 397,516.40
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.