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Finding the Fourth Proportional to 369,548.70, 553,545.45 and 307,340.70

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Solution

The fourth proportional to 369,548.70, 553,545.45 and 307,340.70 is: 460,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,548.70 : 553,545.45 = 307,340.70 : x
  2. Step 2: Convert to fraction form
    369,548.70/553,545.45 = 307,340.70/x
  3. Step 3: Cross multiply
    369,548.70x = 553,545.45 × 307,340.70
  4. Step 4: Simplify right side
    369,548.70x = 170,127,046,084.82
  5. Step 5: Solve for x
    x = 170,127,046,084.82/369,548.70
  6. Step 6: Final answer
    x = 460,364.35

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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.