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Finding the Fourth Proportional to 528,048.32, 792,155.10 and 191,053.49

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Solution

The fourth proportional to 528,048.32, 792,155.10 and 191,053.49 is: 286,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,048.32 : 792,155.10 = 191,053.49 : x
  2. Step 2: Convert to fraction form
    528,048.32/792,155.10 = 191,053.49/x
  3. Step 3: Cross multiply
    528,048.32x = 792,155.10 × 191,053.49
  4. Step 4: Simplify right side
    528,048.32x = 151,343,996,476.30
  5. Step 5: Solve for x
    x = 151,343,996,476.30/528,048.32
  6. Step 6: Final answer
    x = 286,610.13

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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.