Home / 545,721.36-747,641.76-525,267.36

Finding the Fourth Proportional to 545,721.36, 747,641.76 and 525,267.36

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Solution

The fourth proportional to 545,721.36, 747,641.76 and 525,267.36 is: 719,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,721.36 : 747,641.76 = 525,267.36 : x
  2. Step 2: Convert to fraction form
    545,721.36/747,641.76 = 525,267.36/x
  3. Step 3: Cross multiply
    545,721.36x = 747,641.76 × 525,267.36
  4. Step 4: Simplify right side
    545,721.36x = 392,711,813,500.95
  5. Step 5: Solve for x
    x = 392,711,813,500.95/545,721.36
  6. Step 6: Final answer
    x = 719,619.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.