Home / 986,188.47-1,478,162.55-417,214.45

Finding the Fourth Proportional to 986,188.47, 1,478,162.55 and 417,214.45

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Solution

The fourth proportional to 986,188.47, 1,478,162.55 and 417,214.45 is: 625,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,188.47 : 1,478,162.55 = 417,214.45 : x
  2. Step 2: Convert to fraction form
    986,188.47/1,478,162.55 = 417,214.45/x
  3. Step 3: Cross multiply
    986,188.47x = 1,478,162.55 × 417,214.45
  4. Step 4: Simplify right side
    986,188.47x = 616,710,766,886.19
  5. Step 5: Solve for x
    x = 616,710,766,886.19/986,188.47
  6. Step 6: Final answer
    x = 625,347.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.