Home / 916,451.05-1,264,731.45-529,259.47

Finding the Fourth Proportional to 916,451.05, 1,264,731.45 and 529,259.47

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Solution

The fourth proportional to 916,451.05, 1,264,731.45 and 529,259.47 is: 730,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,451.05 : 1,264,731.45 = 529,259.47 : x
  2. Step 2: Convert to fraction form
    916,451.05/1,264,731.45 = 529,259.47/x
  3. Step 3: Cross multiply
    916,451.05x = 1,264,731.45 × 529,259.47
  4. Step 4: Simplify right side
    916,451.05x = 669,371,090,595.67
  5. Step 5: Solve for x
    x = 669,371,090,595.67/916,451.05
  6. Step 6: Final answer
    x = 730,394.81

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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.