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Finding the Fourth Proportional to 607,034.20, 910,332.60 and 307,415.20

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Solution

The fourth proportional to 607,034.20, 910,332.60 and 307,415.20 is: 461,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,034.20 : 910,332.60 = 307,415.20 : x
  2. Step 2: Convert to fraction form
    607,034.20/910,332.60 = 307,415.20/x
  3. Step 3: Cross multiply
    607,034.20x = 910,332.60 × 307,415.20
  4. Step 4: Simplify right side
    607,034.20x = 279,850,078,295.52
  5. Step 5: Solve for x
    x = 279,850,078,295.52/607,034.20
  6. Step 6: Final answer
    x = 461,012.05

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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.