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Finding the Fourth Proportional to 607,559.40, 911,339.10 and 572,567.40

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Solution

The fourth proportional to 607,559.40, 911,339.10 and 572,567.40 is: 858,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,559.40 : 911,339.10 = 572,567.40 : x
  2. Step 2: Convert to fraction form
    607,559.40/911,339.10 = 572,567.40/x
  3. Step 3: Cross multiply
    607,559.40x = 911,339.10 × 572,567.40
  4. Step 4: Simplify right side
    607,559.40x = 521,803,059,005.34
  5. Step 5: Solve for x
    x = 521,803,059,005.34/607,559.40
  6. Step 6: Final answer
    x = 858,851.10

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Half scale
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Double scale
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Similar ratio
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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.