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Finding the Fourth Proportional to 530,103.10, 740,569.70 and 530,103.10

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Solution

The fourth proportional to 530,103.10, 740,569.70 and 530,103.10 is: 740,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,103.10 : 740,569.70 = 530,103.10 : x
  2. Step 2: Convert to fraction form
    530,103.10/740,569.70 = 530,103.10/x
  3. Step 3: Cross multiply
    530,103.10x = 740,569.70 × 530,103.10
  4. Step 4: Simplify right side
    530,103.10x = 392,578,293,736.07
  5. Step 5: Solve for x
    x = 392,578,293,736.07/530,103.10
  6. Step 6: Final answer
    x = 740,569.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.