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Finding the Fourth Proportional to 560,983.40, 774,186.10 and 343,123.78

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Solution

The fourth proportional to 560,983.40, 774,186.10 and 343,123.78 is: 473,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,983.40 : 774,186.10 = 343,123.78 : x
  2. Step 2: Convert to fraction form
    560,983.40/774,186.10 = 343,123.78/x
  3. Step 3: Cross multiply
    560,983.40x = 774,186.10 × 343,123.78
  4. Step 4: Simplify right side
    560,983.40x = 265,641,661,055.46
  5. Step 5: Solve for x
    x = 265,641,661,055.46/560,983.40
  6. Step 6: Final answer
    x = 473,528.56

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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.