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Finding the Fourth Proportional to 922,715.20, 1,273,345.21 and 514,792.77

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Solution

The fourth proportional to 922,715.20, 1,273,345.21 and 514,792.77 is: 710,413.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,715.20 : 1,273,345.21 = 514,792.77 : x
  2. Step 2: Convert to fraction form
    922,715.20/1,273,345.21 = 514,792.77/x
  3. Step 3: Cross multiply
    922,715.20x = 1,273,345.21 × 514,792.77
  4. Step 4: Simplify right side
    922,715.20x = 655,508,903,690.58
  5. Step 5: Solve for x
    x = 655,508,903,690.58/922,715.20
  6. Step 6: Final answer
    x = 710,413.04

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Double scale
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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.