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Finding the Fourth Proportional to 607,192.78, 837,574.78 and 392,332.86

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Solution

The fourth proportional to 607,192.78, 837,574.78 and 392,332.86 is: 541,192.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,192.78 : 837,574.78 = 392,332.86 : x
  2. Step 2: Convert to fraction form
    607,192.78/837,574.78 = 392,332.86/x
  3. Step 3: Cross multiply
    607,192.78x = 837,574.78 × 392,332.86
  4. Step 4: Simplify right side
    607,192.78x = 328,608,108,901.27
  5. Step 5: Solve for x
    x = 328,608,108,901.27/607,192.78
  6. Step 6: Final answer
    x = 541,192.39

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Half scale
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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.