Home / 385,105.03-577,657.63-145,153.93

Finding the Fourth Proportional to 385,105.03, 577,657.63 and 145,153.93

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Solution

The fourth proportional to 385,105.03, 577,657.63 and 145,153.93 is: 217,730.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,105.03 : 577,657.63 = 145,153.93 : x
  2. Step 2: Convert to fraction form
    385,105.03/577,657.63 = 145,153.93/x
  3. Step 3: Cross multiply
    385,105.03x = 577,657.63 × 145,153.93
  4. Step 4: Simplify right side
    385,105.03x = 83,849,275,188.99
  5. Step 5: Solve for x
    x = 83,849,275,188.99/385,105.03
  6. Step 6: Final answer
    x = 217,730.93

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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.