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Finding the Fourth Proportional to 633,225.05, 873,818 and 346,689.71

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Solution

The fourth proportional to 633,225.05, 873,818 and 346,689.71 is: 478,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,225.05 : 873,818 = 346,689.71 : x
  2. Step 2: Convert to fraction form
    633,225.05/873,818 = 346,689.71/x
  3. Step 3: Cross multiply
    633,225.05x = 873,818 × 346,689.71
  4. Step 4: Simplify right side
    633,225.05x = 302,943,709,012.78
  5. Step 5: Solve for x
    x = 302,943,709,012.78/633,225.05
  6. Step 6: Final answer
    x = 478,413.97

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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.