Home / 897,256.32-1,238,288.16-515,356.80

Finding the Fourth Proportional to 897,256.32, 1,238,288.16 and 515,356.80

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Solution

The fourth proportional to 897,256.32, 1,238,288.16 and 515,356.80 is: 711,235.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,256.32 : 1,238,288.16 = 515,356.80 : x
  2. Step 2: Convert to fraction form
    897,256.32/1,238,288.16 = 515,356.80/x
  3. Step 3: Cross multiply
    897,256.32x = 1,238,288.16 × 515,356.80
  4. Step 4: Simplify right side
    897,256.32x = 638,160,223,615.49
  5. Step 5: Solve for x
    x = 638,160,223,615.49/897,256.32
  6. Step 6: Final answer
    x = 711,235.14

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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.