Home / 617,921.10-926,881.65-352,500.30

Finding the Fourth Proportional to 617,921.10, 926,881.65 and 352,500.30

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Solution

The fourth proportional to 617,921.10, 926,881.65 and 352,500.30 is: 528,750.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,921.10 : 926,881.65 = 352,500.30 : x
  2. Step 2: Convert to fraction form
    617,921.10/926,881.65 = 352,500.30/x
  3. Step 3: Cross multiply
    617,921.10x = 926,881.65 × 352,500.30
  4. Step 4: Simplify right side
    617,921.10x = 326,726,059,689.50
  5. Step 5: Solve for x
    x = 326,726,059,689.50/617,921.10
  6. Step 6: Final answer
    x = 528,750.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.