Home / 819,104.04-1,130,420.34-496,827.72

Finding the Fourth Proportional to 819,104.04, 1,130,420.34 and 496,827.72

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Solution

The fourth proportional to 819,104.04, 1,130,420.34 and 496,827.72 is: 685,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,104.04 : 1,130,420.34 = 496,827.72 : x
  2. Step 2: Convert to fraction form
    819,104.04/1,130,420.34 = 496,827.72/x
  3. Step 3: Cross multiply
    819,104.04x = 1,130,420.34 × 496,827.72
  4. Step 4: Simplify right side
    819,104.04x = 561,624,160,163.83
  5. Step 5: Solve for x
    x = 561,624,160,163.83/819,104.04
  6. Step 6: Final answer
    x = 685,656.68

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Double scale
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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.