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Finding the Fourth Proportional to 591,721.80, 887,582.70 and 497,243.40

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Solution

The fourth proportional to 591,721.80, 887,582.70 and 497,243.40 is: 745,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,721.80 : 887,582.70 = 497,243.40 : x
  2. Step 2: Convert to fraction form
    591,721.80/887,582.70 = 497,243.40/x
  3. Step 3: Cross multiply
    591,721.80x = 887,582.70 × 497,243.40
  4. Step 4: Simplify right side
    591,721.80x = 441,344,639,529.18
  5. Step 5: Solve for x
    x = 441,344,639,529.18/591,721.80
  6. Step 6: Final answer
    x = 745,865.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.