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Finding the Fourth Proportional to 713,474.93, 984,587.91 and 391,184.24

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Solution

The fourth proportional to 713,474.93, 984,587.91 and 391,184.24 is: 539,830.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,474.93 : 984,587.91 = 391,184.24 : x
  2. Step 2: Convert to fraction form
    713,474.93/984,587.91 = 391,184.24/x
  3. Step 3: Cross multiply
    713,474.93x = 984,587.91 × 391,184.24
  4. Step 4: Simplify right side
    713,474.93x = 385,155,266,896.66
  5. Step 5: Solve for x
    x = 385,155,266,896.66/713,474.93
  6. Step 6: Final answer
    x = 539,830.13

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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.