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Finding the Fourth Proportional to 564,874.24, 779,530.08 and 310,223.20

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Solution

The fourth proportional to 564,874.24, 779,530.08 and 310,223.20 is: 428,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,874.24 : 779,530.08 = 310,223.20 : x
  2. Step 2: Convert to fraction form
    564,874.24/779,530.08 = 310,223.20/x
  3. Step 3: Cross multiply
    564,874.24x = 779,530.08 × 310,223.20
  4. Step 4: Simplify right side
    564,874.24x = 241,828,315,913.86
  5. Step 5: Solve for x
    x = 241,828,315,913.86/564,874.24
  6. Step 6: Final answer
    x = 428,110.01

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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.