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Finding the Fourth Proportional to 607,515.40, 911,273.10 and 575,038.45

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Solution

The fourth proportional to 607,515.40, 911,273.10 and 575,038.45 is: 862,557.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,515.40 : 911,273.10 = 575,038.45 : x
  2. Step 2: Convert to fraction form
    607,515.40/911,273.10 = 575,038.45/x
  3. Step 3: Cross multiply
    607,515.40x = 911,273.10 × 575,038.45
  4. Step 4: Simplify right side
    607,515.40x = 524,017,070,950.70
  5. Step 5: Solve for x
    x = 524,017,070,950.70/607,515.40
  6. Step 6: Final answer
    x = 862,557.68

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Double scale
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1.5x scale

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.