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Finding the Fourth Proportional to 607,800.60, 838,818.06 and 403,490.52

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Solution

The fourth proportional to 607,800.60, 838,818.06 and 403,490.52 is: 556,852.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,800.60 : 838,818.06 = 403,490.52 : x
  2. Step 2: Convert to fraction form
    607,800.60/838,818.06 = 403,490.52/x
  3. Step 3: Cross multiply
    607,800.60x = 838,818.06 × 403,490.52
  4. Step 4: Simplify right side
    607,800.60x = 338,455,135,214.79
  5. Step 5: Solve for x
    x = 338,455,135,214.79/607,800.60
  6. Step 6: Final answer
    x = 556,852.26

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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.