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Finding the Fourth Proportional to 553,532.10, 830,055.15 and 253,913.10

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Solution

The fourth proportional to 553,532.10, 830,055.15 and 253,913.10 is: 380,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,532.10 : 830,055.15 = 253,913.10 : x
  2. Step 2: Convert to fraction form
    553,532.10/830,055.15 = 253,913.10/x
  3. Step 3: Cross multiply
    553,532.10x = 830,055.15 × 253,913.10
  4. Step 4: Simplify right side
    553,532.10x = 210,761,876,307.47
  5. Step 5: Solve for x
    x = 210,761,876,307.47/553,532.10
  6. Step 6: Final answer
    x = 380,758.18

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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.