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Finding the Fourth Proportional to 704,728.80, 1,059,166.80 and 613,490.40

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Solution

The fourth proportional to 704,728.80, 1,059,166.80 and 613,490.40 is: 922,040.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,728.80 : 1,059,166.80 = 613,490.40 : x
  2. Step 2: Convert to fraction form
    704,728.80/1,059,166.80 = 613,490.40/x
  3. Step 3: Cross multiply
    704,728.80x = 1,059,166.80 × 613,490.40
  4. Step 4: Simplify right side
    704,728.80x = 649,788,663,798.72
  5. Step 5: Solve for x
    x = 649,788,663,798.72/704,728.80
  6. Step 6: Final answer
    x = 922,040.74

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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.