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Finding the Fourth Proportional to 502,801.70, 693,187.20 and 341,376.53

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Solution

The fourth proportional to 502,801.70, 693,187.20 and 341,376.53 is: 470,638.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,801.70 : 693,187.20 = 341,376.53 : x
  2. Step 2: Convert to fraction form
    502,801.70/693,187.20 = 341,376.53/x
  3. Step 3: Cross multiply
    502,801.70x = 693,187.20 × 341,376.53
  4. Step 4: Simplify right side
    502,801.70x = 236,637,837,510.48
  5. Step 5: Solve for x
    x = 236,637,837,510.48/502,801.70
  6. Step 6: Final answer
    x = 470,638.50

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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.