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Finding the Fourth Proportional to 675,904.42, 932,328.05 and 417,860.29

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Solution

The fourth proportional to 675,904.42, 932,328.05 and 417,860.29 is: 576,387.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,904.42 : 932,328.05 = 417,860.29 : x
  2. Step 2: Convert to fraction form
    675,904.42/932,328.05 = 417,860.29/x
  3. Step 3: Cross multiply
    675,904.42x = 932,328.05 × 417,860.29
  4. Step 4: Simplify right side
    675,904.42x = 389,582,872,221.65
  5. Step 5: Solve for x
    x = 389,582,872,221.65/675,904.42
  6. Step 6: Final answer
    x = 576,387.52

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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.