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Finding the Fourth Proportional to 539,200.95, 744,335.96 and 348,307.35

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Solution

The fourth proportional to 539,200.95, 744,335.96 and 348,307.35 is: 480,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,200.95 : 744,335.96 = 348,307.35 : x
  2. Step 2: Convert to fraction form
    539,200.95/744,335.96 = 348,307.35/x
  3. Step 3: Cross multiply
    539,200.95x = 744,335.96 × 348,307.35
  4. Step 4: Simplify right side
    539,200.95x = 259,257,683,995.77
  5. Step 5: Solve for x
    x = 259,257,683,995.77/539,200.95
  6. Step 6: Final answer
    x = 480,818.30

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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.