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Finding the Fourth Proportional to 1,018,881, 1,528,554.78 and 354,033

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Solution

The fourth proportional to 1,018,881, 1,528,554.78 and 354,033 is: 531,130.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,881 : 1,528,554.78 = 354,033 : x
  2. Step 2: Convert to fraction form
    1,018,881/1,528,554.78 = 354,033/x
  3. Step 3: Cross multiply
    1,018,881x = 1,528,554.78 × 354,033
  4. Step 4: Simplify right side
    1,018,881x = 541,158,834,427.74
  5. Step 5: Solve for x
    x = 541,158,834,427.74/1,018,881
  6. Step 6: Final answer
    x = 531,130.56

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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.