Home / 916,635.21-1,264,897.49-508,737.38

Finding the Fourth Proportional to 916,635.21, 1,264,897.49 and 508,737.38

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Solution

The fourth proportional to 916,635.21, 1,264,897.49 and 508,737.38 is: 702,024.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,635.21 : 1,264,897.49 = 508,737.38 : x
  2. Step 2: Convert to fraction form
    916,635.21/1,264,897.49 = 508,737.38/x
  3. Step 3: Cross multiply
    916,635.21x = 1,264,897.49 × 508,737.38
  4. Step 4: Simplify right side
    916,635.21x = 643,500,635,031.18
  5. Step 5: Solve for x
    x = 643,500,635,031.18/916,635.21
  6. Step 6: Final answer
    x = 702,024.78

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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.