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Finding the Fourth Proportional to 623,810.20, 935,715.30 and 606,314.20

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Solution

The fourth proportional to 623,810.20, 935,715.30 and 606,314.20 is: 909,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,810.20 : 935,715.30 = 606,314.20 : x
  2. Step 2: Convert to fraction form
    623,810.20/935,715.30 = 606,314.20/x
  3. Step 3: Cross multiply
    623,810.20x = 935,715.30 × 606,314.20
  4. Step 4: Simplify right side
    623,810.20x = 567,337,473,547.26
  5. Step 5: Solve for x
    x = 567,337,473,547.26/623,810.20
  6. Step 6: Final answer
    x = 909,471.30

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Half scale
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Double scale
Find fourth proportional to 623,811.20, 935,716.80 and 606,315.20
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.