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Finding the Fourth Proportional to 355,298.40, 532,364.40 and 302,810.40

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Solution

The fourth proportional to 355,298.40, 532,364.40 and 302,810.40 is: 453,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,298.40 : 532,364.40 = 302,810.40 : x
  2. Step 2: Convert to fraction form
    355,298.40/532,364.40 = 302,810.40/x
  3. Step 3: Cross multiply
    355,298.40x = 532,364.40 × 302,810.40
  4. Step 4: Simplify right side
    355,298.40x = 161,205,476,909.76
  5. Step 5: Solve for x
    x = 161,205,476,909.76/355,298.40
  6. Step 6: Final answer
    x = 453,718.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.