Home / 385,030.20-577,545.30-291,718.20

Finding the Fourth Proportional to 385,030.20, 577,545.30 and 291,718.20

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Solution

The fourth proportional to 385,030.20, 577,545.30 and 291,718.20 is: 437,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,030.20 : 577,545.30 = 291,718.20 : x
  2. Step 2: Convert to fraction form
    385,030.20/577,545.30 = 291,718.20/x
  3. Step 3: Cross multiply
    385,030.20x = 577,545.30 × 291,718.20
  4. Step 4: Simplify right side
    385,030.20x = 168,480,475,334.46
  5. Step 5: Solve for x
    x = 168,480,475,334.46/385,030.20
  6. Step 6: Final answer
    x = 437,577.30

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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.