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Finding the Fourth Proportional to 289,352.04, 399,312.90 and 162,053.52

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Solution

The fourth proportional to 289,352.04, 399,312.90 and 162,053.52 is: 223,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,352.04 : 399,312.90 = 162,053.52 : x
  2. Step 2: Convert to fraction form
    289,352.04/399,312.90 = 162,053.52/x
  3. Step 3: Cross multiply
    289,352.04x = 399,312.90 × 162,053.52
  4. Step 4: Simplify right side
    289,352.04x = 64,710,061,026.41
  5. Step 5: Solve for x
    x = 64,710,061,026.41/289,352.04
  6. Step 6: Final answer
    x = 223,637.83

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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.