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Finding the Fourth Proportional to 555,805.74, 767,276.40 and 372,360.18

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Solution

The fourth proportional to 555,805.74, 767,276.40 and 372,360.18 is: 514,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,805.74 : 767,276.40 = 372,360.18 : x
  2. Step 2: Convert to fraction form
    555,805.74/767,276.40 = 372,360.18/x
  3. Step 3: Cross multiply
    555,805.74x = 767,276.40 × 372,360.18
  4. Step 4: Simplify right side
    555,805.74x = 285,703,178,413.75
  5. Step 5: Solve for x
    x = 285,703,178,413.75/555,805.74
  6. Step 6: Final answer
    x = 514,034.24

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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.