Home / 630,023.40-869,045.76-403,275.24

Finding the Fourth Proportional to 630,023.40, 869,045.76 and 403,275.24

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Solution

The fourth proportional to 630,023.40, 869,045.76 and 403,275.24 is: 556,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,023.40 : 869,045.76 = 403,275.24 : x
  2. Step 2: Convert to fraction form
    630,023.40/869,045.76 = 403,275.24/x
  3. Step 3: Cross multiply
    630,023.40x = 869,045.76 × 403,275.24
  4. Step 4: Simplify right side
    630,023.40x = 350,464,637,434.98
  5. Step 5: Solve for x
    x = 350,464,637,434.98/630,023.40
  6. Step 6: Final answer
    x = 556,272.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.