Home / 661,384.16-912,904.38-431,976.52

Finding the Fourth Proportional to 661,384.16, 912,904.38 and 431,976.52

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Solution

The fourth proportional to 661,384.16, 912,904.38 and 431,976.52 is: 596,254.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,384.16 : 912,904.38 = 431,976.52 : x
  2. Step 2: Convert to fraction form
    661,384.16/912,904.38 = 431,976.52/x
  3. Step 3: Cross multiply
    661,384.16x = 912,904.38 × 431,976.52
  4. Step 4: Simplify right side
    661,384.16x = 394,353,257,165.16
  5. Step 5: Solve for x
    x = 394,353,257,165.16/661,384.16
  6. Step 6: Final answer
    x = 596,254.46

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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.