Home / 943,775.68-1,302,695.04-642,144.64

Finding the Fourth Proportional to 943,775.68, 1,302,695.04 and 642,144.64

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Solution

The fourth proportional to 943,775.68, 1,302,695.04 and 642,144.64 is: 886,353.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,775.68 : 1,302,695.04 = 642,144.64 : x
  2. Step 2: Convert to fraction form
    943,775.68/1,302,695.04 = 642,144.64/x
  3. Step 3: Cross multiply
    943,775.68x = 1,302,695.04 × 642,144.64
  4. Step 4: Simplify right side
    943,775.68x = 836,518,637,490.59
  5. Step 5: Solve for x
    x = 836,518,637,490.59/943,775.68
  6. Step 6: Final answer
    x = 886,353.25

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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.