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Finding the Fourth Proportional to 522,053.10, 781,330.05 and 522,053.10

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Solution

The fourth proportional to 522,053.10, 781,330.05 and 522,053.10 is: 781,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,053.10 : 781,330.05 = 522,053.10 : x
  2. Step 2: Convert to fraction form
    522,053.10/781,330.05 = 522,053.10/x
  3. Step 3: Cross multiply
    522,053.10x = 781,330.05 × 522,053.10
  4. Step 4: Simplify right side
    522,053.10x = 407,895,774,725.66
  5. Step 5: Solve for x
    x = 407,895,774,725.66/522,053.10
  6. Step 6: Final answer
    x = 781,330.05

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Double scale
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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.