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Finding the Fourth Proportional to 353,498.83, 530,248.25 and 291,038.11

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Solution

The fourth proportional to 353,498.83, 530,248.25 and 291,038.11 is: 436,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,498.83 : 530,248.25 = 291,038.11 : x
  2. Step 2: Convert to fraction form
    353,498.83/530,248.25 = 291,038.11/x
  3. Step 3: Cross multiply
    353,498.83x = 530,248.25 × 291,038.11
  4. Step 4: Simplify right side
    353,498.83x = 154,322,448,510.81
  5. Step 5: Solve for x
    x = 154,322,448,510.81/353,498.83
  6. Step 6: Final answer
    x = 436,557.17

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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.