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Finding the Fourth Proportional to 576,041.40, 864,062.10 and 260,508.60

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Solution

The fourth proportional to 576,041.40, 864,062.10 and 260,508.60 is: 390,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,041.40 : 864,062.10 = 260,508.60 : x
  2. Step 2: Convert to fraction form
    576,041.40/864,062.10 = 260,508.60/x
  3. Step 3: Cross multiply
    576,041.40x = 864,062.10 × 260,508.60
  4. Step 4: Simplify right side
    576,041.40x = 225,095,607,984.06
  5. Step 5: Solve for x
    x = 225,095,607,984.06/576,041.40
  6. Step 6: Final answer
    x = 390,762.90

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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.