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Finding the Fourth Proportional to 672,085.08, 927,411.12 and 400,070.88

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Solution

The fourth proportional to 672,085.08, 927,411.12 and 400,070.88 is: 552,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,085.08 : 927,411.12 = 400,070.88 : x
  2. Step 2: Convert to fraction form
    672,085.08/927,411.12 = 400,070.88/x
  3. Step 3: Cross multiply
    672,085.08x = 927,411.12 × 400,070.88
  4. Step 4: Simplify right side
    672,085.08x = 371,030,182,900.19
  5. Step 5: Solve for x
    x = 371,030,182,900.19/672,085.08
  6. Step 6: Final answer
    x = 552,058.35

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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.