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Finding the Fourth Proportional to 468,405.84, 646,400.18 and 253,545.24

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Solution

The fourth proportional to 468,405.84, 646,400.18 and 253,545.24 is: 349,892.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,405.84 : 646,400.18 = 253,545.24 : x
  2. Step 2: Convert to fraction form
    468,405.84/646,400.18 = 253,545.24/x
  3. Step 3: Cross multiply
    468,405.84x = 646,400.18 × 253,545.24
  4. Step 4: Simplify right side
    468,405.84x = 163,891,688,774.14
  5. Step 5: Solve for x
    x = 163,891,688,774.14/468,405.84
  6. Step 6: Final answer
    x = 349,892.50

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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.