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Finding the Fourth Proportional to 572,817.90, 858,643.65 and 336,038.70

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Solution

The fourth proportional to 572,817.90, 858,643.65 and 336,038.70 is: 503,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,817.90 : 858,643.65 = 336,038.70 : x
  2. Step 2: Convert to fraction form
    572,817.90/858,643.65 = 336,038.70/x
  3. Step 3: Cross multiply
    572,817.90x = 858,643.65 × 336,038.70
  4. Step 4: Simplify right side
    572,817.90x = 288,537,495,909.26
  5. Step 5: Solve for x
    x = 288,537,495,909.26/572,817.90
  6. Step 6: Final answer
    x = 503,715.92

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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.