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Finding the Fourth Proportional to 604,924.60, 907,386.90 and 424,521.40

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Solution

The fourth proportional to 604,924.60, 907,386.90 and 424,521.40 is: 636,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,924.60 : 907,386.90 = 424,521.40 : x
  2. Step 2: Convert to fraction form
    604,924.60/907,386.90 = 424,521.40/x
  3. Step 3: Cross multiply
    604,924.60x = 907,386.90 × 424,521.40
  4. Step 4: Simplify right side
    604,924.60x = 385,205,157,129.66
  5. Step 5: Solve for x
    x = 385,205,157,129.66/604,924.60
  6. Step 6: Final answer
    x = 636,782.10

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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.