Home / 909,870.12-1,255,214.76-527,675.40

Finding the Fourth Proportional to 909,870.12, 1,255,214.76 and 527,675.40

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Solution

The fourth proportional to 909,870.12, 1,255,214.76 and 527,675.40 is: 727,956.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,870.12 : 1,255,214.76 = 527,675.40 : x
  2. Step 2: Convert to fraction form
    909,870.12/1,255,214.76 = 527,675.40/x
  3. Step 3: Cross multiply
    909,870.12x = 1,255,214.76 × 527,675.40
  4. Step 4: Simplify right side
    909,870.12x = 662,345,950,568.90
  5. Step 5: Solve for x
    x = 662,345,950,568.90/909,870.12
  6. Step 6: Final answer
    x = 727,956.59

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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.