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Finding the Fourth Proportional to 403,902.80, 564,358 and 403,902.80

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Solution

The fourth proportional to 403,902.80, 564,358 and 403,902.80 is: 564,358

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,902.80 : 564,358 = 403,902.80 : x
  2. Step 2: Convert to fraction form
    403,902.80/564,358 = 403,902.80/x
  3. Step 3: Cross multiply
    403,902.80x = 564,358 × 403,902.80
  4. Step 4: Simplify right side
    403,902.80x = 227,945,776,402.40
  5. Step 5: Solve for x
    x = 227,945,776,402.40/403,902.80
  6. Step 6: Final answer
    x = 564,358

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.