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Finding the Fourth Proportional to 435,643.55, 601,117.56 and 272,280.80

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Solution

The fourth proportional to 435,643.55, 601,117.56 and 272,280.80 is: 375,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,643.55 : 601,117.56 = 272,280.80 : x
  2. Step 2: Convert to fraction form
    435,643.55/601,117.56 = 272,280.80/x
  3. Step 3: Cross multiply
    435,643.55x = 601,117.56 × 272,280.80
  4. Step 4: Simplify right side
    435,643.55x = 163,672,767,125.26
  5. Step 5: Solve for x
    x = 163,672,767,125.26/435,643.55
  6. Step 6: Final answer
    x = 375,703.41

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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.