Home / 626,380.76-864,424.68-368,210.36

Finding the Fourth Proportional to 626,380.76, 864,424.68 and 368,210.36

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Solution

The fourth proportional to 626,380.76, 864,424.68 and 368,210.36 is: 508,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,380.76 : 864,424.68 = 368,210.36 : x
  2. Step 2: Convert to fraction form
    626,380.76/864,424.68 = 368,210.36/x
  3. Step 3: Cross multiply
    626,380.76x = 864,424.68 × 368,210.36
  4. Step 4: Simplify right side
    626,380.76x = 318,290,122,615.69
  5. Step 5: Solve for x
    x = 318,290,122,615.69/626,380.76
  6. Step 6: Final answer
    x = 508,141.60

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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.