Home / 827,528.27-1,142,498.51-656,138.55

Finding the Fourth Proportional to 827,528.27, 1,142,498.51 and 656,138.55

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Solution

The fourth proportional to 827,528.27, 1,142,498.51 and 656,138.55 is: 905,875.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,528.27 : 1,142,498.51 = 656,138.55 : x
  2. Step 2: Convert to fraction form
    827,528.27/1,142,498.51 = 656,138.55/x
  3. Step 3: Cross multiply
    827,528.27x = 1,142,498.51 × 656,138.55
  4. Step 4: Simplify right side
    827,528.27x = 749,637,312,447.87
  5. Step 5: Solve for x
    x = 749,637,312,447.87/827,528.27
  6. Step 6: Final answer
    x = 905,875.18

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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.