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Finding the Fourth Proportional to 404,698.77, 558,551.84 and 386,762.13

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Solution

The fourth proportional to 404,698.77, 558,551.84 and 386,762.13 is: 533,796.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,698.77 : 558,551.84 = 386,762.13 : x
  2. Step 2: Convert to fraction form
    404,698.77/558,551.84 = 386,762.13/x
  3. Step 3: Cross multiply
    404,698.77x = 558,551.84 × 386,762.13
  4. Step 4: Simplify right side
    404,698.77x = 216,026,697,420.01
  5. Step 5: Solve for x
    x = 216,026,697,420.01/404,698.77
  6. Step 6: Final answer
    x = 533,796.28

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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.