Home / 621,831.80-927,897.87-554,811.20

Finding the Fourth Proportional to 621,831.80, 927,897.87 and 554,811.20

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Solution

The fourth proportional to 621,831.80, 927,897.87 and 554,811.20 is: 827,889.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,831.80 : 927,897.87 = 554,811.20 : x
  2. Step 2: Convert to fraction form
    621,831.80/927,897.87 = 554,811.20/x
  3. Step 3: Cross multiply
    621,831.80x = 927,897.87 × 554,811.20
  4. Step 4: Simplify right side
    621,831.80x = 514,808,127,958.09
  5. Step 5: Solve for x
    x = 514,808,127,958.09/621,831.80
  6. Step 6: Final answer
    x = 827,889.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.