Home / 927,549.34-1,280,054.84-519,654.55

Finding the Fourth Proportional to 927,549.34, 1,280,054.84 and 519,654.55

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Solution

The fourth proportional to 927,549.34, 1,280,054.84 and 519,654.55 is: 717,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,549.34 : 1,280,054.84 = 519,654.55 : x
  2. Step 2: Convert to fraction form
    927,549.34/1,280,054.84 = 519,654.55/x
  3. Step 3: Cross multiply
    927,549.34x = 1,280,054.84 × 519,654.55
  4. Step 4: Simplify right side
    927,549.34x = 665,186,321,855.52
  5. Step 5: Solve for x
    x = 665,186,321,855.52/927,549.34
  6. Step 6: Final answer
    x = 717,143.87

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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.