Home / 641,743.34-885,327.75-386,952.98

Finding the Fourth Proportional to 641,743.34, 885,327.75 and 386,952.98

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Solution

The fourth proportional to 641,743.34, 885,327.75 and 386,952.98 is: 533,827.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,743.34 : 885,327.75 = 386,952.98 : x
  2. Step 2: Convert to fraction form
    641,743.34/885,327.75 = 386,952.98/x
  3. Step 3: Cross multiply
    641,743.34x = 885,327.75 × 386,952.98
  4. Step 4: Simplify right side
    641,743.34x = 342,580,211,139.20
  5. Step 5: Solve for x
    x = 342,580,211,139.20/641,743.34
  6. Step 6: Final answer
    x = 533,827.45

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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.