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Finding the Fourth Proportional to 468,347.64, 646,314.66 and 253,483.08

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Solution

The fourth proportional to 468,347.64, 646,314.66 and 253,483.08 is: 349,803.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,347.64 : 646,314.66 = 253,483.08 : x
  2. Step 2: Convert to fraction form
    468,347.64/646,314.66 = 253,483.08/x
  3. Step 3: Cross multiply
    468,347.64x = 646,314.66 × 253,483.08
  4. Step 4: Simplify right side
    468,347.64x = 163,829,830,665.95
  5. Step 5: Solve for x
    x = 163,829,830,665.95/468,347.64
  6. Step 6: Final answer
    x = 349,803.90

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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.