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Finding the Fourth Proportional to 700,557.66, 966,591.63 and 428,526.18

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Solution

The fourth proportional to 700,557.66, 966,591.63 and 428,526.18 is: 591,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,557.66 : 966,591.63 = 428,526.18 : x
  2. Step 2: Convert to fraction form
    700,557.66/966,591.63 = 428,526.18/x
  3. Step 3: Cross multiply
    700,557.66x = 966,591.63 × 428,526.18
  4. Step 4: Simplify right side
    700,557.66x = 414,209,818,823.87
  5. Step 5: Solve for x
    x = 414,209,818,823.87/700,557.66
  6. Step 6: Final answer
    x = 591,257.28

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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.