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Finding the Fourth Proportional to 611,707.78, 844,248.71 and 440,193.52

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Solution

The fourth proportional to 611,707.78, 844,248.71 and 440,193.52 is: 607,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,707.78 : 844,248.71 = 440,193.52 : x
  2. Step 2: Convert to fraction form
    611,707.78/844,248.71 = 440,193.52/x
  3. Step 3: Cross multiply
    611,707.78x = 844,248.71 × 440,193.52
  4. Step 4: Simplify right side
    611,707.78x = 371,632,804,988.15
  5. Step 5: Solve for x
    x = 371,632,804,988.15/611,707.78
  6. Step 6: Final answer
    x = 607,533.24

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1.5x scale

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.