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Finding the Fourth Proportional to 545,243.69, 817,624.95 and 292,448.36

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Solution

The fourth proportional to 545,243.69, 817,624.95 and 292,448.36 is: 438,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,243.69 : 817,624.95 = 292,448.36 : x
  2. Step 2: Convert to fraction form
    545,243.69/817,624.95 = 292,448.36/x
  3. Step 3: Cross multiply
    545,243.69x = 817,624.95 × 292,448.36
  4. Step 4: Simplify right side
    545,243.69x = 239,113,071,634.46
  5. Step 5: Solve for x
    x = 239,113,071,634.46/545,243.69
  6. Step 6: Final answer
    x = 438,543.50

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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.