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Finding the Fourth Proportional to 519,328.62, 716,547.27 and 304,427.16

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Solution

The fourth proportional to 519,328.62, 716,547.27 and 304,427.16 is: 420,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,328.62 : 716,547.27 = 304,427.16 : x
  2. Step 2: Convert to fraction form
    519,328.62/716,547.27 = 304,427.16/x
  3. Step 3: Cross multiply
    519,328.62x = 716,547.27 × 304,427.16
  4. Step 4: Simplify right side
    519,328.62x = 218,136,450,411.85
  5. Step 5: Solve for x
    x = 218,136,450,411.85/519,328.62
  6. Step 6: Final answer
    x = 420,035.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.