Home / 830,044.14-1,145,128.26-507,193.72

Finding the Fourth Proportional to 830,044.14, 1,145,128.26 and 507,193.72

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Solution

The fourth proportional to 830,044.14, 1,145,128.26 and 507,193.72 is: 699,724.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,044.14 : 1,145,128.26 = 507,193.72 : x
  2. Step 2: Convert to fraction form
    830,044.14/1,145,128.26 = 507,193.72/x
  3. Step 3: Cross multiply
    830,044.14x = 1,145,128.26 × 507,193.72
  4. Step 4: Simplify right side
    830,044.14x = 580,801,862,066.53
  5. Step 5: Solve for x
    x = 580,801,862,066.53/830,044.14
  6. Step 6: Final answer
    x = 699,724.07

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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.