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Finding the Fourth Proportional to 579,716.84, 799,641.06 and 418,808.36

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Solution

The fourth proportional to 579,716.84, 799,641.06 and 418,808.36 is: 577,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,716.84 : 799,641.06 = 418,808.36 : x
  2. Step 2: Convert to fraction form
    579,716.84/799,641.06 = 418,808.36/x
  3. Step 3: Cross multiply
    579,716.84x = 799,641.06 × 418,808.36
  4. Step 4: Simplify right side
    579,716.84x = 334,896,360,927.26
  5. Step 5: Solve for x
    x = 334,896,360,927.26/579,716.84
  6. Step 6: Final answer
    x = 577,689.55

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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.