Home / 665,280.10-997,822.95-191,916.10

Finding the Fourth Proportional to 665,280.10, 997,822.95 and 191,916.10

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Solution

The fourth proportional to 665,280.10, 997,822.95 and 191,916.10 is: 287,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,280.10 : 997,822.95 = 191,916.10 : x
  2. Step 2: Convert to fraction form
    665,280.10/997,822.95 = 191,916.10/x
  3. Step 3: Cross multiply
    665,280.10x = 997,822.95 × 191,916.10
  4. Step 4: Simplify right side
    665,280.10x = 191,498,289,054.50
  5. Step 5: Solve for x
    x = 191,498,289,054.50/665,280.10
  6. Step 6: Final answer
    x = 287,846.11

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Double scale
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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.