Home / 719,406.02-992,780.50-397,116.34

Finding the Fourth Proportional to 719,406.02, 992,780.50 and 397,116.34

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Solution

The fourth proportional to 719,406.02, 992,780.50 and 397,116.34 is: 548,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,406.02 : 992,780.50 = 397,116.34 : x
  2. Step 2: Convert to fraction form
    719,406.02/992,780.50 = 397,116.34/x
  3. Step 3: Cross multiply
    719,406.02x = 992,780.50 × 397,116.34
  4. Step 4: Simplify right side
    719,406.02x = 394,249,358,583.37
  5. Step 5: Solve for x
    x = 394,249,358,583.37/719,406.02
  6. Step 6: Final answer
    x = 548,020.66

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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.