Home / 927,984.04-1,280,707.86-520,155.16

Finding the Fourth Proportional to 927,984.04, 1,280,707.86 and 520,155.16

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Solution

The fourth proportional to 927,984.04, 1,280,707.86 and 520,155.16 is: 717,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,984.04 : 1,280,707.86 = 520,155.16 : x
  2. Step 2: Convert to fraction form
    927,984.04/1,280,707.86 = 520,155.16/x
  3. Step 3: Cross multiply
    927,984.04x = 1,280,707.86 × 520,155.16
  4. Step 4: Simplify right side
    927,984.04x = 666,166,801,831.56
  5. Step 5: Solve for x
    x = 666,166,801,831.56/927,984.04
  6. Step 6: Final answer
    x = 717,864.50

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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.