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Finding the Fourth Proportional to 704,853.95, 972,688.43 and 382,555.76

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Solution

The fourth proportional to 704,853.95, 972,688.43 and 382,555.76 is: 527,921.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,853.95 : 972,688.43 = 382,555.76 : x
  2. Step 2: Convert to fraction form
    704,853.95/972,688.43 = 382,555.76/x
  3. Step 3: Cross multiply
    704,853.95x = 972,688.43 × 382,555.76
  4. Step 4: Simplify right side
    704,853.95x = 372,107,554,805.64
  5. Step 5: Solve for x
    x = 372,107,554,805.64/704,853.95
  6. Step 6: Final answer
    x = 527,921.50

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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.