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Finding the Fourth Proportional to 566,483.15, 781,764.35 and 308,377.28

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Solution

The fourth proportional to 566,483.15, 781,764.35 and 308,377.28 is: 425,570.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,483.15 : 781,764.35 = 308,377.28 : x
  2. Step 2: Convert to fraction form
    566,483.15/781,764.35 = 308,377.28/x
  3. Step 3: Cross multiply
    566,483.15x = 781,764.35 × 308,377.28
  4. Step 4: Simplify right side
    566,483.15x = 241,078,358,403.26
  5. Step 5: Solve for x
    x = 241,078,358,403.26/566,483.15
  6. Step 6: Final answer
    x = 425,570.22

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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.