Home / 385,085.40-577,666.70-132,332.60

Finding the Fourth Proportional to 385,085.40, 577,666.70 and 132,332.60

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Solution

The fourth proportional to 385,085.40, 577,666.70 and 132,332.60 is: 198,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,085.40 : 577,666.70 = 132,332.60 : x
  2. Step 2: Convert to fraction form
    385,085.40/577,666.70 = 132,332.60/x
  3. Step 3: Cross multiply
    385,085.40x = 577,666.70 × 132,332.60
  4. Step 4: Simplify right side
    385,085.40x = 76,444,136,344.42
  5. Step 5: Solve for x
    x = 76,444,136,344.42/385,085.40
  6. Step 6: Final answer
    x = 198,512.16

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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.