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Finding the Fourth Proportional to 314,545.95, 434,058.57 and 178,561.94

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Solution

The fourth proportional to 314,545.95, 434,058.57 and 178,561.94 is: 246,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,545.95 : 434,058.57 = 178,561.94 : x
  2. Step 2: Convert to fraction form
    314,545.95/434,058.57 = 178,561.94/x
  3. Step 3: Cross multiply
    314,545.95x = 434,058.57 × 178,561.94
  4. Step 4: Simplify right side
    314,545.95x = 77,506,338,162.53
  5. Step 5: Solve for x
    x = 77,506,338,162.53/314,545.95
  6. Step 6: Final answer
    x = 246,407.05

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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.