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Finding the Fourth Proportional to 700,607.24, 966,887.16 and 398,801.24

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Solution

The fourth proportional to 700,607.24, 966,887.16 and 398,801.24 is: 550,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,607.24 : 966,887.16 = 398,801.24 : x
  2. Step 2: Convert to fraction form
    700,607.24/966,887.16 = 398,801.24/x
  3. Step 3: Cross multiply
    700,607.24x = 966,887.16 × 398,801.24
  4. Step 4: Simplify right side
    700,607.24x = 385,595,798,348.08
  5. Step 5: Solve for x
    x = 385,595,798,348.08/700,607.24
  6. Step 6: Final answer
    x = 550,373.70

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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.