Home / 515,199.48-710,153.79-406,125.93

Finding the Fourth Proportional to 515,199.48, 710,153.79 and 406,125.93

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Solution

The fourth proportional to 515,199.48, 710,153.79 and 406,125.93 is: 559,806.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,199.48 : 710,153.79 = 406,125.93 : x
  2. Step 2: Convert to fraction form
    515,199.48/710,153.79 = 406,125.93/x
  3. Step 3: Cross multiply
    515,199.48x = 710,153.79 × 406,125.93
  4. Step 4: Simplify right side
    515,199.48x = 288,411,868,406.78
  5. Step 5: Solve for x
    x = 288,411,868,406.78/515,199.48
  6. Step 6: Final answer
    x = 559,806.21

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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.