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Finding the Fourth Proportional to 867,978.80, 1,197,011.40 and 595,566.08

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Solution

The fourth proportional to 867,978.80, 1,197,011.40 and 595,566.08 is: 821,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,978.80 : 1,197,011.40 = 595,566.08 : x
  2. Step 2: Convert to fraction form
    867,978.80/1,197,011.40 = 595,566.08/x
  3. Step 3: Cross multiply
    867,978.80x = 1,197,011.40 × 595,566.08
  4. Step 4: Simplify right side
    867,978.80x = 712,899,387,213.31
  5. Step 5: Solve for x
    x = 712,899,387,213.31/867,978.80
  6. Step 6: Final answer
    x = 821,332.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.