Home / 719,407.02-992,781.88-397,117.34

Finding the Fourth Proportional to 719,407.02, 992,781.88 and 397,117.34

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Solution

The fourth proportional to 719,407.02, 992,781.88 and 397,117.34 is: 548,022.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,407.02 : 992,781.88 = 397,117.34 : x
  2. Step 2: Convert to fraction form
    719,407.02/992,781.88 = 397,117.34/x
  3. Step 3: Cross multiply
    719,407.02x = 992,781.88 × 397,117.34
  4. Step 4: Simplify right side
    719,407.02x = 394,250,899,385.80
  5. Step 5: Solve for x
    x = 394,250,899,385.80/719,407.02
  6. Step 6: Final answer
    x = 548,022.04

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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.