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Finding the Fourth Proportional to 637,348.16, 877,643.52 and 623,203.76

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Solution

The fourth proportional to 637,348.16, 877,643.52 and 623,203.76 is: 858,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,348.16 : 877,643.52 = 623,203.76 : x
  2. Step 2: Convert to fraction form
    637,348.16/877,643.52 = 623,203.76/x
  3. Step 3: Cross multiply
    637,348.16x = 877,643.52 × 623,203.76
  4. Step 4: Simplify right side
    637,348.16x = 546,950,741,603.64
  5. Step 5: Solve for x
    x = 546,950,741,603.64/637,348.16
  6. Step 6: Final answer
    x = 858,166.35

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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.