Home / 909,108.36-1,254,291.48-527,058.90

Finding the Fourth Proportional to 909,108.36, 1,254,291.48 and 527,058.90

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Solution

The fourth proportional to 909,108.36, 1,254,291.48 and 527,058.90 is: 727,180.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,108.36 : 1,254,291.48 = 527,058.90 : x
  2. Step 2: Convert to fraction form
    909,108.36/1,254,291.48 = 527,058.90/x
  3. Step 3: Cross multiply
    909,108.36x = 1,254,291.48 × 527,058.90
  4. Step 4: Simplify right side
    909,108.36x = 661,085,487,728.17
  5. Step 5: Solve for x
    x = 661,085,487,728.17/909,108.36
  6. Step 6: Final answer
    x = 727,180.08

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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.