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Finding the Fourth Proportional to 835,424.40, 1,152,854.80 and 453,442.98

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Solution

The fourth proportional to 835,424.40, 1,152,854.80 and 453,442.98 is: 625,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,424.40 : 1,152,854.80 = 453,442.98 : x
  2. Step 2: Convert to fraction form
    835,424.40/1,152,854.80 = 453,442.98/x
  3. Step 3: Cross multiply
    835,424.40x = 1,152,854.80 × 453,442.98
  4. Step 4: Simplify right side
    835,424.40x = 522,753,916,019.30
  5. Step 5: Solve for x
    x = 522,753,916,019.30/835,424.40
  6. Step 6: Final answer
    x = 625,734.56

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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.