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Finding the Fourth Proportional to 672,574.35, 928,056.36 and 417,832.59

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Solution

The fourth proportional to 672,574.35, 928,056.36 and 417,832.59 is: 576,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,574.35 : 928,056.36 = 417,832.59 : x
  2. Step 2: Convert to fraction form
    672,574.35/928,056.36 = 417,832.59/x
  3. Step 3: Cross multiply
    672,574.35x = 928,056.36 × 417,832.59
  4. Step 4: Simplify right side
    672,574.35x = 387,772,192,564.77
  5. Step 5: Solve for x
    x = 387,772,192,564.77/672,574.35
  6. Step 6: Final answer
    x = 576,549.18

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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.