Home / 352,357,696.80-528,536,545.20-261,658,432.80

Finding the Fourth Proportional to 352,357,696.80, 528,536,545.20 and 261,658,432.80

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Solution

The fourth proportional to 352,357,696.80, 528,536,545.20 and 261,658,432.80 is: 392,487,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,357,696.80 : 528,536,545.20 = 261,658,432.80 : x
  2. Step 2: Convert to fraction form
    352,357,696.80/528,536,545.20 = 261,658,432.80/x
  3. Step 3: Cross multiply
    352,357,696.80x = 528,536,545.20 × 261,658,432.80
  4. Step 4: Simplify right side
    352,357,696.80x = 138,296,044,094,558,368
  5. Step 5: Solve for x
    x = 138,296,044,094,558,368/352,357,696.80
  6. Step 6: Final answer
    x = 392,487,649.20

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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.