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Finding the Fourth Proportional to 922,720.19, 1,273,352.10 and 514,797.78

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Solution

The fourth proportional to 922,720.19, 1,273,352.10 and 514,797.78 is: 710,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,720.19 : 1,273,352.10 = 514,797.78 : x
  2. Step 2: Convert to fraction form
    922,720.19/1,273,352.10 = 514,797.78/x
  3. Step 3: Cross multiply
    922,720.19x = 1,273,352.10 × 514,797.78
  4. Step 4: Simplify right side
    922,720.19x = 655,518,834,238.34
  5. Step 5: Solve for x
    x = 655,518,834,238.34/922,720.19
  6. Step 6: Final answer
    x = 710,419.95

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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.