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Finding the Fourth Proportional to 704,856.14, 971,966.22 and 418,320.87

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Solution

The fourth proportional to 704,856.14, 971,966.22 and 418,320.87 is: 576,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,856.14 : 971,966.22 = 418,320.87 : x
  2. Step 2: Convert to fraction form
    704,856.14/971,966.22 = 418,320.87/x
  3. Step 3: Cross multiply
    704,856.14x = 971,966.22 × 418,320.87
  4. Step 4: Simplify right side
    704,856.14x = 406,593,749,547.44
  5. Step 5: Solve for x
    x = 406,593,749,547.44/704,856.14
  6. Step 6: Final answer
    x = 576,846.43

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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.