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Finding the Fourth Proportional to 616,223.80, 922,521.30 and 459,148.60

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Solution

The fourth proportional to 616,223.80, 922,521.30 and 459,148.60 is: 687,370.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,223.80 : 922,521.30 = 459,148.60 : x
  2. Step 2: Convert to fraction form
    616,223.80/922,521.30 = 459,148.60/x
  3. Step 3: Cross multiply
    616,223.80x = 922,521.30 × 459,148.60
  4. Step 4: Simplify right side
    616,223.80x = 423,574,363,365.18
  5. Step 5: Solve for x
    x = 423,574,363,365.18/616,223.80
  6. Step 6: Final answer
    x = 687,370.99

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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.