Home / 661,583.39-912,844.53-389,552.04

Finding the Fourth Proportional to 661,583.39, 912,844.53 and 389,552.04

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Solution

The fourth proportional to 661,583.39, 912,844.53 and 389,552.04 is: 537,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,583.39 : 912,844.53 = 389,552.04 : x
  2. Step 2: Convert to fraction form
    661,583.39/912,844.53 = 389,552.04/x
  3. Step 3: Cross multiply
    661,583.39x = 912,844.53 × 389,552.04
  4. Step 4: Simplify right side
    661,583.39x = 355,600,448,864.34
  5. Step 5: Solve for x
    x = 355,600,448,864.34/661,583.39
  6. Step 6: Final answer
    x = 537,499.06

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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.