Home / 927,988.04-1,280,713.38-520,159.16

Finding the Fourth Proportional to 927,988.04, 1,280,713.38 and 520,159.16

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Solution

The fourth proportional to 927,988.04, 1,280,713.38 and 520,159.16 is: 717,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,988.04 : 1,280,713.38 = 520,159.16 : x
  2. Step 2: Convert to fraction form
    927,988.04/1,280,713.38 = 520,159.16/x
  3. Step 3: Cross multiply
    927,988.04x = 1,280,713.38 × 520,159.16
  4. Step 4: Simplify right side
    927,988.04x = 666,174,795,941.56
  5. Step 5: Solve for x
    x = 666,174,795,941.56/927,988.04
  6. Step 6: Final answer
    x = 717,870.02

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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.