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Finding the Fourth Proportional to 739,022.40, 1,106,978.40 and 614,606.40

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Solution

The fourth proportional to 739,022.40, 1,106,978.40 and 614,606.40 is: 920,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,022.40 : 1,106,978.40 = 614,606.40 : x
  2. Step 2: Convert to fraction form
    739,022.40/1,106,978.40 = 614,606.40/x
  3. Step 3: Cross multiply
    739,022.40x = 1,106,978.40 × 614,606.40
  4. Step 4: Simplify right side
    739,022.40x = 680,356,009,301.76
  5. Step 5: Solve for x
    x = 680,356,009,301.76/739,022.40
  6. Step 6: Final answer
    x = 920,616.22

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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.