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Finding the Fourth Proportional to 704,864.39, 972,713.79 and 382,574.48

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Solution

The fourth proportional to 704,864.39, 972,713.79 and 382,574.48 is: 527,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,864.39 : 972,713.79 = 382,574.48 : x
  2. Step 2: Convert to fraction form
    704,864.39/972,713.79 = 382,574.48/x
  3. Step 3: Cross multiply
    704,864.39x = 972,713.79 × 382,574.48
  4. Step 4: Simplify right side
    704,864.39x = 372,135,467,534.51
  5. Step 5: Solve for x
    x = 372,135,467,534.51/704,864.39
  6. Step 6: Final answer
    x = 527,953.28

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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.