Home / 864,407.82-1,193,038.92-515,570.58

Finding the Fourth Proportional to 864,407.82, 1,193,038.92 and 515,570.58

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Solution

The fourth proportional to 864,407.82, 1,193,038.92 and 515,570.58 is: 711,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,407.82 : 1,193,038.92 = 515,570.58 : x
  2. Step 2: Convert to fraction form
    864,407.82/1,193,038.92 = 515,570.58/x
  3. Step 3: Cross multiply
    864,407.82x = 1,193,038.92 × 515,570.58
  4. Step 4: Simplify right side
    864,407.82x = 615,095,767,946.97
  5. Step 5: Solve for x
    x = 615,095,767,946.97/864,407.82
  6. Step 6: Final answer
    x = 711,580.52

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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.