Home / 385,916.47-578,822.15-101,583.21

Finding the Fourth Proportional to 385,916.47, 578,822.15 and 101,583.21

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Solution

The fourth proportional to 385,916.47, 578,822.15 and 101,583.21 is: 152,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,916.47 : 578,822.15 = 101,583.21 : x
  2. Step 2: Convert to fraction form
    385,916.47/578,822.15 = 101,583.21/x
  3. Step 3: Cross multiply
    385,916.47x = 578,822.15 × 101,583.21
  4. Step 4: Simplify right side
    385,916.47x = 58,798,609,556.83
  5. Step 5: Solve for x
    x = 58,798,609,556.83/385,916.47
  6. Step 6: Final answer
    x = 152,360.98

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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.