Home / 897,566.20-1,238,756.50-515,666.80

Finding the Fourth Proportional to 897,566.20, 1,238,756.50 and 515,666.80

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Solution

The fourth proportional to 897,566.20, 1,238,756.50 and 515,666.80 is: 711,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,566.20 : 1,238,756.50 = 515,666.80 : x
  2. Step 2: Convert to fraction form
    897,566.20/1,238,756.50 = 515,666.80/x
  3. Step 3: Cross multiply
    897,566.20x = 1,238,756.50 × 515,666.80
  4. Step 4: Simplify right side
    897,566.20x = 638,785,600,334.20
  5. Step 5: Solve for x
    x = 638,785,600,334.20/897,566.20
  6. Step 6: Final answer
    x = 711,686.34

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Double scale
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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.