Home / 623,143.90-858,931.17-486,941.18

Finding the Fourth Proportional to 623,143.90, 858,931.17 and 486,941.18

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Solution

The fourth proportional to 623,143.90, 858,931.17 and 486,941.18 is: 671,191.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,143.90 : 858,931.17 = 486,941.18 : x
  2. Step 2: Convert to fraction form
    623,143.90/858,931.17 = 486,941.18/x
  3. Step 3: Cross multiply
    623,143.90x = 858,931.17 × 486,941.18
  4. Step 4: Simplify right side
    623,143.90x = 418,248,957,458.58
  5. Step 5: Solve for x
    x = 418,248,957,458.58/623,143.90
  6. Step 6: Final answer
    x = 671,191.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.