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Finding the Fourth Proportional to 835,347.78, 1,152,750.69 and 453,366.90

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Solution

The fourth proportional to 835,347.78, 1,152,750.69 and 453,366.90 is: 625,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,347.78 : 1,152,750.69 = 453,366.90 : x
  2. Step 2: Convert to fraction form
    835,347.78/1,152,750.69 = 453,366.90/x
  3. Step 3: Cross multiply
    835,347.78x = 1,152,750.69 × 453,366.90
  4. Step 4: Simplify right side
    835,347.78x = 522,619,006,798.16
  5. Step 5: Solve for x
    x = 522,619,006,798.16/835,347.78
  6. Step 6: Final answer
    x = 625,630.45

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.