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Finding the Fourth Proportional to 551,404.16, 761,226.80 and 371,064.32

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Solution

The fourth proportional to 551,404.16, 761,226.80 and 371,064.32 is: 512,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,404.16 : 761,226.80 = 371,064.32 : x
  2. Step 2: Convert to fraction form
    551,404.16/761,226.80 = 371,064.32/x
  3. Step 3: Cross multiply
    551,404.16x = 761,226.80 × 371,064.32
  4. Step 4: Simplify right side
    551,404.16x = 282,464,104,907.78
  5. Step 5: Solve for x
    x = 282,464,104,907.78/551,404.16
  6. Step 6: Final answer
    x = 512,263.28

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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.