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Finding the Fourth Proportional to 364,547.20, 546,626.40 and 153,947.20

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Solution

The fourth proportional to 364,547.20, 546,626.40 and 153,947.20 is: 230,838.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,547.20 : 546,626.40 = 153,947.20 : x
  2. Step 2: Convert to fraction form
    364,547.20/546,626.40 = 153,947.20/x
  3. Step 3: Cross multiply
    364,547.20x = 546,626.40 × 153,947.20
  4. Step 4: Simplify right side
    364,547.20x = 84,151,603,726.08
  5. Step 5: Solve for x
    x = 84,151,603,726.08/364,547.20
  6. Step 6: Final answer
    x = 230,838.71

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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.