Home / 554,308.17-830,616.38-288,155.13

Finding the Fourth Proportional to 554,308.17, 830,616.38 and 288,155.13

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Solution

The fourth proportional to 554,308.17, 830,616.38 and 288,155.13 is: 431,792.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,308.17 : 830,616.38 = 288,155.13 : x
  2. Step 2: Convert to fraction form
    554,308.17/830,616.38 = 288,155.13/x
  3. Step 3: Cross multiply
    554,308.17x = 830,616.38 × 288,155.13
  4. Step 4: Simplify right side
    554,308.17x = 239,346,369,518.25
  5. Step 5: Solve for x
    x = 239,346,369,518.25/554,308.17
  6. Step 6: Final answer
    x = 431,792.97

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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.