Home / 623,154.40-858,945.66-486,951.68

Finding the Fourth Proportional to 623,154.40, 858,945.66 and 486,951.68

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Solution

The fourth proportional to 623,154.40, 858,945.66 and 486,951.68 is: 671,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,154.40 : 858,945.66 = 486,951.68 : x
  2. Step 2: Convert to fraction form
    623,154.40/858,945.66 = 486,951.68/x
  3. Step 3: Cross multiply
    623,154.40x = 858,945.66 × 486,951.68
  4. Step 4: Simplify right side
    623,154.40x = 418,265,032,165.71
  5. Step 5: Solve for x
    x = 418,265,032,165.71/623,154.40
  6. Step 6: Final answer
    x = 671,206.10

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Double scale
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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.