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Finding the Fourth Proportional to 704,128.32, 971,697.34 and 381,838.34

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Solution

The fourth proportional to 704,128.32, 971,697.34 and 381,838.34 is: 526,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,128.32 : 971,697.34 = 381,838.34 : x
  2. Step 2: Convert to fraction form
    704,128.32/971,697.34 = 381,838.34/x
  3. Step 3: Cross multiply
    704,128.32x = 971,697.34 × 381,838.34
  4. Step 4: Simplify right side
    704,128.32x = 371,031,299,288.02
  5. Step 5: Solve for x
    x = 371,031,299,288.02/704,128.32
  6. Step 6: Final answer
    x = 526,937.05

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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.