Home / 529,778.73-731,089.55-288,061.39

Finding the Fourth Proportional to 529,778.73, 731,089.55 and 288,061.39

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Solution

The fourth proportional to 529,778.73, 731,089.55 and 288,061.39 is: 397,521.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,778.73 : 731,089.55 = 288,061.39 : x
  2. Step 2: Convert to fraction form
    529,778.73/731,089.55 = 288,061.39/x
  3. Step 3: Cross multiply
    529,778.73x = 731,089.55 × 288,061.39
  4. Step 4: Simplify right side
    529,778.73x = 210,598,670,547.17
  5. Step 5: Solve for x
    x = 210,598,670,547.17/529,778.73
  6. Step 6: Final answer
    x = 397,521.95

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1.5x scale

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.