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Finding the Fourth Proportional to 528,019.67, 791,214.14 and 356,569.34

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Solution

The fourth proportional to 528,019.67, 791,214.14 and 356,569.34 is: 534,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,019.67 : 791,214.14 = 356,569.34 : x
  2. Step 2: Convert to fraction form
    528,019.67/791,214.14 = 356,569.34/x
  3. Step 3: Cross multiply
    528,019.67x = 791,214.14 × 356,569.34
  4. Step 4: Simplify right side
    528,019.67x = 282,122,700,633.82
  5. Step 5: Solve for x
    x = 282,122,700,633.82/528,019.67
  6. Step 6: Final answer
    x = 534,303.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.