Home / 909,209.67-1,254,431.10-527,160.21

Finding the Fourth Proportional to 909,209.67, 1,254,431.10 and 527,160.21

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Solution

The fourth proportional to 909,209.67, 1,254,431.10 and 527,160.21 is: 727,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,209.67 : 1,254,431.10 = 527,160.21 : x
  2. Step 2: Convert to fraction form
    909,209.67/1,254,431.10 = 527,160.21/x
  3. Step 3: Cross multiply
    909,209.67x = 1,254,431.10 × 527,160.21
  4. Step 4: Simplify right side
    909,209.67x = 661,286,162,106.53
  5. Step 5: Solve for x
    x = 661,286,162,106.53/909,209.67
  6. Step 6: Final answer
    x = 727,319.76

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Double scale
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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.