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Finding the Fourth Proportional to 615,030.30, 922,545.45 and 573,039.90

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Solution

The fourth proportional to 615,030.30, 922,545.45 and 573,039.90 is: 859,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,030.30 : 922,545.45 = 573,039.90 : x
  2. Step 2: Convert to fraction form
    615,030.30/922,545.45 = 573,039.90/x
  3. Step 3: Cross multiply
    615,030.30x = 922,545.45 × 573,039.90
  4. Step 4: Simplify right side
    615,030.30x = 528,655,352,413.46
  5. Step 5: Solve for x
    x = 528,655,352,413.46/615,030.30
  6. Step 6: Final answer
    x = 859,559.85

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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.