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Finding the Fourth Proportional to 369,430.12, 553,237.98 and 235,916.20

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Solution

The fourth proportional to 369,430.12, 553,237.98 and 235,916.20 is: 353,294.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,430.12 : 553,237.98 = 235,916.20 : x
  2. Step 2: Convert to fraction form
    369,430.12/553,237.98 = 235,916.20/x
  3. Step 3: Cross multiply
    369,430.12x = 553,237.98 × 235,916.20
  4. Step 4: Simplify right side
    369,430.12x = 130,517,801,937.28
  5. Step 5: Solve for x
    x = 130,517,801,937.28/369,430.12
  6. Step 6: Final answer
    x = 353,294.97

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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.