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Finding the Fourth Proportional to 418,875.02, 623,574.68 and 416,383.86

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Solution

The fourth proportional to 418,875.02, 623,574.68 and 416,383.86 is: 619,866.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,875.02 : 623,574.68 = 416,383.86 : x
  2. Step 2: Convert to fraction form
    418,875.02/623,574.68 = 416,383.86/x
  3. Step 3: Cross multiply
    418,875.02x = 623,574.68 × 416,383.86
  4. Step 4: Simplify right side
    418,875.02x = 259,646,432,256.67
  5. Step 5: Solve for x
    x = 259,646,432,256.67/418,875.02
  6. Step 6: Final answer
    x = 619,866.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.